feat(数据集):草稿，数据集 关联视图 功能。自助数据集需要关联视图做支撑，先简单做个 数据集 关联视图 的功能，后边再优化

backend/src/main/java/io/dataease/base/domain/DatasetTableUnion.java

@@ -0,0 +1,27 @@
+package io.dataease.base.domain;
+
+import java.io.Serializable;
+import lombok.Data;
+
+@Data
+public class DatasetTableUnion implements Serializable {
+    private String id;
+
+    private String sourceTableId;
+
+    private String sourceTableFieldId;
+
+    private String sourceUnionRelation;
+
+    private String targetTableId;
+
+    private String targetTableFieldId;
+
+    private String targetUnionRelation;
+
+    private String createBy;
+
+    private Long createTime;
+
+    private static final long serialVersionUID = 1L;
+}

backend/src/main/java/io/dataease/base/domain/DatasetTableUnionExample.java

@@ -0,0 +1,820 @@
+package io.dataease.base.domain;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DatasetTableUnionExample {
+    protected String orderByClause;
+
+    protected boolean distinct;
+
+    protected List<Criteria> oredCriteria;
+
+    public DatasetTableUnionExample() {
+        oredCriteria = new ArrayList<Criteria>();
+    }
+
+    public void setOrderByClause(String orderByClause) {
+        this.orderByClause = orderByClause;
+    }
+
+    public String getOrderByClause() {
+        return orderByClause;
+    }
+
+    public void setDistinct(boolean distinct) {
+        this.distinct = distinct;
+    }
+
+    public boolean isDistinct() {
+        return distinct;
+    }
+
+    public List<Criteria> getOredCriteria() {
+        return oredCriteria;
+    }
+
+    public void or(Criteria criteria) {
+        oredCriteria.add(criteria);
+    }
+
+    public Criteria or() {
+        Criteria criteria = createCriteriaInternal();
+        oredCriteria.add(criteria);
+        return criteria;
+    }
+
+    public Criteria createCriteria() {
+        Criteria criteria = createCriteriaInternal();
+        if (oredCriteria.size() == 0) {
+            oredCriteria.add(criteria);
+        }
+        return criteria;
+    }
+
+    protected Criteria createCriteriaInternal() {
+        Criteria criteria = new Criteria();
+        return criteria;
+    }
+
+    public void clear() {
+        oredCriteria.clear();
+        orderByClause = null;
+        distinct = false;
+    }
+
+    protected abstract static class GeneratedCriteria {
+        protected List<Criterion> criteria;
+
+        protected GeneratedCriteria() {
+            super();
+            criteria = new ArrayList<Criterion>();
+        }
+
+        public boolean isValid() {
+            return criteria.size() > 0;
+        }
+
+        public List<Criterion> getAllCriteria() {
+            return criteria;
+        }
+
+        public List<Criterion> getCriteria() {
+            return criteria;
+        }
+
+        protected void addCriterion(String condition) {
+            if (condition == null) {
+                throw new RuntimeException("Value for condition cannot be null");
+            }
+            criteria.add(new Criterion(condition));
+        }
+
+        protected void addCriterion(String condition, Object value, String property) {
+            if (value == null) {
+                throw new RuntimeException("Value for " + property + " cannot be null");
+            }
+            criteria.add(new Criterion(condition, value));
+        }
+
+        protected void addCriterion(String condition, Object value1, Object value2, String property) {
+            if (value1 == null || value2 == null) {
+                throw new RuntimeException("Between values for " + property + " cannot be null");
+            }
+            criteria.add(new Criterion(condition, value1, value2));
+        }
+
+        public Criteria andIdIsNull() {
+            addCriterion("id is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdIsNotNull() {
+            addCriterion("id is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdEqualTo(String value) {
+            addCriterion("id =", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdNotEqualTo(String value) {
+            addCriterion("id <>", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdGreaterThan(String value) {
+            addCriterion("id >", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdGreaterThanOrEqualTo(String value) {
+            addCriterion("id >=", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdLessThan(String value) {
+            addCriterion("id <", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdLessThanOrEqualTo(String value) {
+            addCriterion("id <=", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdLike(String value) {
+            addCriterion("id like", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdNotLike(String value) {
+            addCriterion("id not like", value, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdIn(List<String> values) {
+            addCriterion("id in", values, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdNotIn(List<String> values) {
+            addCriterion("id not in", values, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdBetween(String value1, String value2) {
+            addCriterion("id between", value1, value2, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andIdNotBetween(String value1, String value2) {
+            addCriterion("id not between", value1, value2, "id");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdIsNull() {
+            addCriterion("source_table_id is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdIsNotNull() {
+            addCriterion("source_table_id is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdEqualTo(String value) {
+            addCriterion("source_table_id =", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdNotEqualTo(String value) {
+            addCriterion("source_table_id <>", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdGreaterThan(String value) {
+            addCriterion("source_table_id >", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdGreaterThanOrEqualTo(String value) {
+            addCriterion("source_table_id >=", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdLessThan(String value) {
+            addCriterion("source_table_id <", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdLessThanOrEqualTo(String value) {
+            addCriterion("source_table_id <=", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdLike(String value) {
+            addCriterion("source_table_id like", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdNotLike(String value) {
+            addCriterion("source_table_id not like", value, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdIn(List<String> values) {
+            addCriterion("source_table_id in", values, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdNotIn(List<String> values) {
+            addCriterion("source_table_id not in", values, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdBetween(String value1, String value2) {
+            addCriterion("source_table_id between", value1, value2, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableIdNotBetween(String value1, String value2) {
+            addCriterion("source_table_id not between", value1, value2, "sourceTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdIsNull() {
+            addCriterion("source_table_field_id is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdIsNotNull() {
+            addCriterion("source_table_field_id is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdEqualTo(String value) {
+            addCriterion("source_table_field_id =", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdNotEqualTo(String value) {
+            addCriterion("source_table_field_id <>", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdGreaterThan(String value) {
+            addCriterion("source_table_field_id >", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdGreaterThanOrEqualTo(String value) {
+            addCriterion("source_table_field_id >=", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdLessThan(String value) {
+            addCriterion("source_table_field_id <", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdLessThanOrEqualTo(String value) {
+            addCriterion("source_table_field_id <=", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdLike(String value) {
+            addCriterion("source_table_field_id like", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdNotLike(String value) {
+            addCriterion("source_table_field_id not like", value, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdIn(List<String> values) {
+            addCriterion("source_table_field_id in", values, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdNotIn(List<String> values) {
+            addCriterion("source_table_field_id not in", values, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdBetween(String value1, String value2) {
+            addCriterion("source_table_field_id between", value1, value2, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceTableFieldIdNotBetween(String value1, String value2) {
+            addCriterion("source_table_field_id not between", value1, value2, "sourceTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationIsNull() {
+            addCriterion("source_union_relation is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationIsNotNull() {
+            addCriterion("source_union_relation is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationEqualTo(String value) {
+            addCriterion("source_union_relation =", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationNotEqualTo(String value) {
+            addCriterion("source_union_relation <>", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationGreaterThan(String value) {
+            addCriterion("source_union_relation >", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationGreaterThanOrEqualTo(String value) {
+            addCriterion("source_union_relation >=", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationLessThan(String value) {
+            addCriterion("source_union_relation <", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationLessThanOrEqualTo(String value) {
+            addCriterion("source_union_relation <=", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationLike(String value) {
+            addCriterion("source_union_relation like", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationNotLike(String value) {
+            addCriterion("source_union_relation not like", value, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationIn(List<String> values) {
+            addCriterion("source_union_relation in", values, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationNotIn(List<String> values) {
+            addCriterion("source_union_relation not in", values, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationBetween(String value1, String value2) {
+            addCriterion("source_union_relation between", value1, value2, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andSourceUnionRelationNotBetween(String value1, String value2) {
+            addCriterion("source_union_relation not between", value1, value2, "sourceUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdIsNull() {
+            addCriterion("target_table_id is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdIsNotNull() {
+            addCriterion("target_table_id is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdEqualTo(String value) {
+            addCriterion("target_table_id =", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdNotEqualTo(String value) {
+            addCriterion("target_table_id <>", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdGreaterThan(String value) {
+            addCriterion("target_table_id >", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdGreaterThanOrEqualTo(String value) {
+            addCriterion("target_table_id >=", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdLessThan(String value) {
+            addCriterion("target_table_id <", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdLessThanOrEqualTo(String value) {
+            addCriterion("target_table_id <=", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdLike(String value) {
+            addCriterion("target_table_id like", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdNotLike(String value) {
+            addCriterion("target_table_id not like", value, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdIn(List<String> values) {
+            addCriterion("target_table_id in", values, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdNotIn(List<String> values) {
+            addCriterion("target_table_id not in", values, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdBetween(String value1, String value2) {
+            addCriterion("target_table_id between", value1, value2, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableIdNotBetween(String value1, String value2) {
+            addCriterion("target_table_id not between", value1, value2, "targetTableId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdIsNull() {
+            addCriterion("target_table_field_id is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdIsNotNull() {
+            addCriterion("target_table_field_id is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdEqualTo(String value) {
+            addCriterion("target_table_field_id =", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdNotEqualTo(String value) {
+            addCriterion("target_table_field_id <>", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdGreaterThan(String value) {
+            addCriterion("target_table_field_id >", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdGreaterThanOrEqualTo(String value) {
+            addCriterion("target_table_field_id >=", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdLessThan(String value) {
+            addCriterion("target_table_field_id <", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdLessThanOrEqualTo(String value) {
+            addCriterion("target_table_field_id <=", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdLike(String value) {
+            addCriterion("target_table_field_id like", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdNotLike(String value) {
+            addCriterion("target_table_field_id not like", value, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdIn(List<String> values) {
+            addCriterion("target_table_field_id in", values, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdNotIn(List<String> values) {
+            addCriterion("target_table_field_id not in", values, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdBetween(String value1, String value2) {
+            addCriterion("target_table_field_id between", value1, value2, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetTableFieldIdNotBetween(String value1, String value2) {
+            addCriterion("target_table_field_id not between", value1, value2, "targetTableFieldId");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationIsNull() {
+            addCriterion("target_union_relation is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationIsNotNull() {
+            addCriterion("target_union_relation is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationEqualTo(String value) {
+            addCriterion("target_union_relation =", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationNotEqualTo(String value) {
+            addCriterion("target_union_relation <>", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationGreaterThan(String value) {
+            addCriterion("target_union_relation >", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationGreaterThanOrEqualTo(String value) {
+            addCriterion("target_union_relation >=", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationLessThan(String value) {
+            addCriterion("target_union_relation <", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationLessThanOrEqualTo(String value) {
+            addCriterion("target_union_relation <=", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationLike(String value) {
+            addCriterion("target_union_relation like", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationNotLike(String value) {
+            addCriterion("target_union_relation not like", value, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationIn(List<String> values) {
+            addCriterion("target_union_relation in", values, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationNotIn(List<String> values) {
+            addCriterion("target_union_relation not in", values, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationBetween(String value1, String value2) {
+            addCriterion("target_union_relation between", value1, value2, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andTargetUnionRelationNotBetween(String value1, String value2) {
+            addCriterion("target_union_relation not between", value1, value2, "targetUnionRelation");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByIsNull() {
+            addCriterion("create_by is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByIsNotNull() {
+            addCriterion("create_by is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByEqualTo(String value) {
+            addCriterion("create_by =", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByNotEqualTo(String value) {
+            addCriterion("create_by <>", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByGreaterThan(String value) {
+            addCriterion("create_by >", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByGreaterThanOrEqualTo(String value) {
+            addCriterion("create_by >=", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByLessThan(String value) {
+            addCriterion("create_by <", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByLessThanOrEqualTo(String value) {
+            addCriterion("create_by <=", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByLike(String value) {
+            addCriterion("create_by like", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByNotLike(String value) {
+            addCriterion("create_by not like", value, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByIn(List<String> values) {
+            addCriterion("create_by in", values, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByNotIn(List<String> values) {
+            addCriterion("create_by not in", values, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByBetween(String value1, String value2) {
+            addCriterion("create_by between", value1, value2, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateByNotBetween(String value1, String value2) {
+            addCriterion("create_by not between", value1, value2, "createBy");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeIsNull() {
+            addCriterion("create_time is null");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeIsNotNull() {
+            addCriterion("create_time is not null");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeEqualTo(Long value) {
+            addCriterion("create_time =", value, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeNotEqualTo(Long value) {
+            addCriterion("create_time <>", value, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeGreaterThan(Long value) {
+            addCriterion("create_time >", value, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeGreaterThanOrEqualTo(Long value) {
+            addCriterion("create_time >=", value, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeLessThan(Long value) {
+            addCriterion("create_time <", value, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeLessThanOrEqualTo(Long value) {
+            addCriterion("create_time <=", value, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeIn(List<Long> values) {
+            addCriterion("create_time in", values, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeNotIn(List<Long> values) {
+            addCriterion("create_time not in", values, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeBetween(Long value1, Long value2) {
+            addCriterion("create_time between", value1, value2, "createTime");
+            return (Criteria) this;
+        }
+
+        public Criteria andCreateTimeNotBetween(Long value1, Long value2) {
+            addCriterion("create_time not between", value1, value2, "createTime");
+            return (Criteria) this;
+        }
+    }
+
+    public static class Criteria extends GeneratedCriteria {
+
+        protected Criteria() {
+            super();
+        }
+    }
+
+    public static class Criterion {
+        private String condition;
+
+        private Object value;
+
+        private Object secondValue;
+
+        private boolean noValue;
+
+        private boolean singleValue;
+
+        private boolean betweenValue;
+
+        private boolean listValue;
+
+        private String typeHandler;
+
+        public String getCondition() {
+            return condition;
+        }
+
+        public Object getValue() {
+            return value;
+        }
+
+        public Object getSecondValue() {
+            return secondValue;
+        }
+
+        public boolean isNoValue() {
+            return noValue;
+        }
+
+        public boolean isSingleValue() {
+            return singleValue;
+        }
+
+        public boolean isBetweenValue() {
+            return betweenValue;
+        }
+
+        public boolean isListValue() {
+            return listValue;
+        }
+
+        public String getTypeHandler() {
+            return typeHandler;
+        }
+
+        protected Criterion(String condition) {
+            super();
+            this.condition = condition;
+            this.typeHandler = null;
+            this.noValue = true;
+        }
+
+        protected Criterion(String condition, Object value, String typeHandler) {
+            super();
+            this.condition = condition;
+            this.value = value;
+            this.typeHandler = typeHandler;
+            if (value instanceof List<?>) {
+                this.listValue = true;
+            } else {
+                this.singleValue = true;
+            }
+        }
+
+        protected Criterion(String condition, Object value) {
+            this(condition, value, null);
+        }
+
+        protected Criterion(String condition, Object value, Object secondValue, String typeHandler) {
+            super();
+            this.condition = condition;
+            this.value = value;
+            this.secondValue = secondValue;
+            this.typeHandler = typeHandler;
+            this.betweenValue = true;
+        }
+
+        protected Criterion(String condition, Object value, Object secondValue) {
+            this(condition, value, secondValue, null);
+        }
+    }
+}

backend/src/main/java/io/dataease/base/mapper/DatasetTableUnionMapper.java

@@ -0,0 +1,30 @@
+package io.dataease.base.mapper;
+
+import io.dataease.base.domain.DatasetTableUnion;
+import io.dataease.base.domain.DatasetTableUnionExample;
+import java.util.List;
+import org.apache.ibatis.annotations.Param;
+
+public interface DatasetTableUnionMapper {
+    long countByExample(DatasetTableUnionExample example);
+
+    int deleteByExample(DatasetTableUnionExample example);
+
+    int deleteByPrimaryKey(String id);
+
+    int insert(DatasetTableUnion record);
+
+    int insertSelective(DatasetTableUnion record);
+
+    List<DatasetTableUnion> selectByExample(DatasetTableUnionExample example);
+
+    DatasetTableUnion selectByPrimaryKey(String id);
+
+    int updateByExampleSelective(@Param("record") DatasetTableUnion record, @Param("example") DatasetTableUnionExample example);
+
+    int updateByExample(@Param("record") DatasetTableUnion record, @Param("example") DatasetTableUnionExample example);
+
+    int updateByPrimaryKeySelective(DatasetTableUnion record);
+
+    int updateByPrimaryKey(DatasetTableUnion record);
+}

backend/src/main/java/io/dataease/base/mapper/DatasetTableUnionMapper.xml

@@ -0,0 +1,276 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="io.dataease.base.mapper.DatasetTableUnionMapper">
+  <resultMap id="BaseResultMap" type="io.dataease.base.domain.DatasetTableUnion">
+    <id column="id" jdbcType="VARCHAR" property="id" />
+    <result column="source_table_id" jdbcType="VARCHAR" property="sourceTableId" />
+    <result column="source_table_field_id" jdbcType="VARCHAR" property="sourceTableFieldId" />
+    <result column="source_union_relation" jdbcType="VARCHAR" property="sourceUnionRelation" />
+    <result column="target_table_id" jdbcType="VARCHAR" property="targetTableId" />
+    <result column="target_table_field_id" jdbcType="VARCHAR" property="targetTableFieldId" />
+    <result column="target_union_relation" jdbcType="VARCHAR" property="targetUnionRelation" />
+    <result column="create_by" jdbcType="VARCHAR" property="createBy" />
+    <result column="create_time" jdbcType="BIGINT" property="createTime" />
+  </resultMap>
+  <sql id="Example_Where_Clause">
+    <where>
+      <foreach collection="oredCriteria" item="criteria" separator="or">
+        <if test="criteria.valid">
+          <trim prefix="(" prefixOverrides="and" suffix=")">
+            <foreach collection="criteria.criteria" item="criterion">
+              <choose>
+                <when test="criterion.noValue">
+                  and ${criterion.condition}
+                </when>
+                <when test="criterion.singleValue">
+                  and ${criterion.condition} #{criterion.value}
+                </when>
+                <when test="criterion.betweenValue">
+                  and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
+                </when>
+                <when test="criterion.listValue">
+                  and ${criterion.condition}
+                  <foreach close=")" collection="criterion.value" item="listItem" open="(" separator=",">
+                    #{listItem}
+                  </foreach>
+                </when>
+              </choose>
+            </foreach>
+          </trim>
+        </if>
+      </foreach>
+    </where>
+  </sql>
+  <sql id="Update_By_Example_Where_Clause">
+    <where>
+      <foreach collection="example.oredCriteria" item="criteria" separator="or">
+        <if test="criteria.valid">
+          <trim prefix="(" prefixOverrides="and" suffix=")">
+            <foreach collection="criteria.criteria" item="criterion">
+              <choose>
+                <when test="criterion.noValue">
+                  and ${criterion.condition}
+                </when>
+                <when test="criterion.singleValue">
+                  and ${criterion.condition} #{criterion.value}
+                </when>
+                <when test="criterion.betweenValue">
+                  and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
+                </when>
+                <when test="criterion.listValue">
+                  and ${criterion.condition}
+                  <foreach close=")" collection="criterion.value" item="listItem" open="(" separator=",">
+                    #{listItem}
+                  </foreach>
+                </when>
+              </choose>
+            </foreach>
+          </trim>
+        </if>
+      </foreach>
+    </where>
+  </sql>
+  <sql id="Base_Column_List">
+    id, source_table_id, source_table_field_id, source_union_relation, target_table_id, 
+    target_table_field_id, target_union_relation, create_by, create_time
+  </sql>
+  <select id="selectByExample" parameterType="io.dataease.base.domain.DatasetTableUnionExample" resultMap="BaseResultMap">
+    select
+    <if test="distinct">
+      distinct
+    </if>
+    <include refid="Base_Column_List" />
+    from dataset_table_union
+    <if test="_parameter != null">
+      <include refid="Example_Where_Clause" />
+    </if>
+    <if test="orderByClause != null">
+      order by ${orderByClause}
+    </if>
+  </select>
+  <select id="selectByPrimaryKey" parameterType="java.lang.String" resultMap="BaseResultMap">
+    select 
+    <include refid="Base_Column_List" />
+    from dataset_table_union
+    where id = #{id,jdbcType=VARCHAR}
+  </select>
+  <delete id="deleteByPrimaryKey" parameterType="java.lang.String">
+    delete from dataset_table_union
+    where id = #{id,jdbcType=VARCHAR}
+  </delete>
+  <delete id="deleteByExample" parameterType="io.dataease.base.domain.DatasetTableUnionExample">
+    delete from dataset_table_union
+    <if test="_parameter != null">
+      <include refid="Example_Where_Clause" />
+    </if>
+  </delete>
+  <insert id="insert" parameterType="io.dataease.base.domain.DatasetTableUnion">
+    insert into dataset_table_union (id, source_table_id, source_table_field_id, 
+      source_union_relation, target_table_id, target_table_field_id, 
+      target_union_relation, create_by, create_time
+      )
+    values (#{id,jdbcType=VARCHAR}, #{sourceTableId,jdbcType=VARCHAR}, #{sourceTableFieldId,jdbcType=VARCHAR}, 
+      #{sourceUnionRelation,jdbcType=VARCHAR}, #{targetTableId,jdbcType=VARCHAR}, #{targetTableFieldId,jdbcType=VARCHAR}, 
+      #{targetUnionRelation,jdbcType=VARCHAR}, #{createBy,jdbcType=VARCHAR}, #{createTime,jdbcType=BIGINT}
+      )
+  </insert>
+  <insert id="insertSelective" parameterType="io.dataease.base.domain.DatasetTableUnion">
+    insert into dataset_table_union
+    <trim prefix="(" suffix=")" suffixOverrides=",">
+      <if test="id != null">
+        id,
+      </if>
+      <if test="sourceTableId != null">
+        source_table_id,
+      </if>
+      <if test="sourceTableFieldId != null">
+        source_table_field_id,
+      </if>
+      <if test="sourceUnionRelation != null">
+        source_union_relation,
+      </if>
+      <if test="targetTableId != null">
+        target_table_id,
+      </if>
+      <if test="targetTableFieldId != null">
+        target_table_field_id,
+      </if>
+      <if test="targetUnionRelation != null">
+        target_union_relation,
+      </if>
+      <if test="createBy != null">
+        create_by,
+      </if>
+      <if test="createTime != null">
+        create_time,
+      </if>
+    </trim>
+    <trim prefix="values (" suffix=")" suffixOverrides=",">
+      <if test="id != null">
+        #{id,jdbcType=VARCHAR},
+      </if>
+      <if test="sourceTableId != null">
+        #{sourceTableId,jdbcType=VARCHAR},
+      </if>
+      <if test="sourceTableFieldId != null">
+        #{sourceTableFieldId,jdbcType=VARCHAR},
+      </if>
+      <if test="sourceUnionRelation != null">
+        #{sourceUnionRelation,jdbcType=VARCHAR},
+      </if>
+      <if test="targetTableId != null">
+        #{targetTableId,jdbcType=VARCHAR},
+      </if>
+      <if test="targetTableFieldId != null">
+        #{targetTableFieldId,jdbcType=VARCHAR},
+      </if>
+      <if test="targetUnionRelation != null">
+        #{targetUnionRelation,jdbcType=VARCHAR},
+      </if>
+      <if test="createBy != null">
+        #{createBy,jdbcType=VARCHAR},
+      </if>
+      <if test="createTime != null">
+        #{createTime,jdbcType=BIGINT},
+      </if>
+    </trim>
+  </insert>
+  <select id="countByExample" parameterType="io.dataease.base.domain.DatasetTableUnionExample" resultType="java.lang.Long">
+    select count(*) from dataset_table_union
+    <if test="_parameter != null">
+      <include refid="Example_Where_Clause" />
+    </if>
+  </select>
+  <update id="updateByExampleSelective" parameterType="map">
+    update dataset_table_union
+    <set>
+      <if test="record.id != null">
+        id = #{record.id,jdbcType=VARCHAR},
+      </if>
+      <if test="record.sourceTableId != null">
+        source_table_id = #{record.sourceTableId,jdbcType=VARCHAR},
+      </if>
+      <if test="record.sourceTableFieldId != null">
+        source_table_field_id = #{record.sourceTableFieldId,jdbcType=VARCHAR},
+      </if>
+      <if test="record.sourceUnionRelation != null">
+        source_union_relation = #{record.sourceUnionRelation,jdbcType=VARCHAR},
+      </if>
+      <if test="record.targetTableId != null">
+        target_table_id = #{record.targetTableId,jdbcType=VARCHAR},
+      </if>
+      <if test="record.targetTableFieldId != null">
+        target_table_field_id = #{record.targetTableFieldId,jdbcType=VARCHAR},
+      </if>
+      <if test="record.targetUnionRelation != null">
+        target_union_relation = #{record.targetUnionRelation,jdbcType=VARCHAR},
+      </if>
+      <if test="record.createBy != null">
+        create_by = #{record.createBy,jdbcType=VARCHAR},
+      </if>
+      <if test="record.createTime != null">
+        create_time = #{record.createTime,jdbcType=BIGINT},
+      </if>
+    </set>
+    <if test="_parameter != null">
+      <include refid="Update_By_Example_Where_Clause" />
+    </if>
+  </update>
+  <update id="updateByExample" parameterType="map">
+    update dataset_table_union
+    set id = #{record.id,jdbcType=VARCHAR},
+      source_table_id = #{record.sourceTableId,jdbcType=VARCHAR},
+      source_table_field_id = #{record.sourceTableFieldId,jdbcType=VARCHAR},
+      source_union_relation = #{record.sourceUnionRelation,jdbcType=VARCHAR},
+      target_table_id = #{record.targetTableId,jdbcType=VARCHAR},
+      target_table_field_id = #{record.targetTableFieldId,jdbcType=VARCHAR},
+      target_union_relation = #{record.targetUnionRelation,jdbcType=VARCHAR},
+      create_by = #{record.createBy,jdbcType=VARCHAR},
+      create_time = #{record.createTime,jdbcType=BIGINT}
+    <if test="_parameter != null">
+      <include refid="Update_By_Example_Where_Clause" />
+    </if>
+  </update>
+  <update id="updateByPrimaryKeySelective" parameterType="io.dataease.base.domain.DatasetTableUnion">
+    update dataset_table_union
+    <set>
+      <if test="sourceTableId != null">
+        source_table_id = #{sourceTableId,jdbcType=VARCHAR},
+      </if>
+      <if test="sourceTableFieldId != null">
+        source_table_field_id = #{sourceTableFieldId,jdbcType=VARCHAR},
+      </if>
+      <if test="sourceUnionRelation != null">
+        source_union_relation = #{sourceUnionRelation,jdbcType=VARCHAR},
+      </if>
+      <if test="targetTableId != null">
+        target_table_id = #{targetTableId,jdbcType=VARCHAR},
+      </if>
+      <if test="targetTableFieldId != null">
+        target_table_field_id = #{targetTableFieldId,jdbcType=VARCHAR},
+      </if>
+      <if test="targetUnionRelation != null">
+        target_union_relation = #{targetUnionRelation,jdbcType=VARCHAR},
+      </if>
+      <if test="createBy != null">
+        create_by = #{createBy,jdbcType=VARCHAR},
+      </if>
+      <if test="createTime != null">
+        create_time = #{createTime,jdbcType=BIGINT},
+      </if>
+    </set>
+    where id = #{id,jdbcType=VARCHAR}
+  </update>
+  <update id="updateByPrimaryKey" parameterType="io.dataease.base.domain.DatasetTableUnion">
+    update dataset_table_union
+    set source_table_id = #{sourceTableId,jdbcType=VARCHAR},
+      source_table_field_id = #{sourceTableFieldId,jdbcType=VARCHAR},
+      source_union_relation = #{sourceUnionRelation,jdbcType=VARCHAR},
+      target_table_id = #{targetTableId,jdbcType=VARCHAR},
+      target_table_field_id = #{targetTableFieldId,jdbcType=VARCHAR},
+      target_union_relation = #{targetUnionRelation,jdbcType=VARCHAR},
+      create_by = #{createBy,jdbcType=VARCHAR},
+      create_time = #{createTime,jdbcType=BIGINT}
+    where id = #{id,jdbcType=VARCHAR}
+  </update>
+</mapper>

backend/src/main/java/io/dataease/base/mapper/ext/ExtDatasetTableUnionMapper.java

@@ -0,0 +1,11 @@
+package io.dataease.base.mapper.ext;
+
+import io.dataease.dto.dataset.DataSetTableUnionDTO;
+
+import java.util.List;
+
+public interface ExtDatasetTableUnionMapper {
+    List<DataSetTableUnionDTO> selectBySourceTableId(String tableId);
+
+    List<DataSetTableUnionDTO> selectByTargetTableId(String tableId);
+}

backend/src/main/java/io/dataease/base/mapper/ext/ExtDatasetTableUnionMapper.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="io.dataease.base.mapper.ext.ExtDatasetTableUnionMapper">
+    <resultMap id="BaseResultMap" type="io.dataease.dto.dataset.DataSetTableUnionDTO">
+        <id column="id" jdbcType="VARCHAR" property="id"/>
+        <result column="source_table_id" jdbcType="VARCHAR" property="sourceTableId"/>
+        <result column="source_table_field_id" jdbcType="VARCHAR" property="sourceTableFieldId"/>
+        <result column="source_union_relation" jdbcType="VARCHAR" property="sourceUnionRelation"/>
+        <result column="target_table_id" jdbcType="VARCHAR" property="targetTableId"/>
+        <result column="target_table_field_id" jdbcType="VARCHAR" property="targetTableFieldId"/>
+        <result column="target_union_relation" jdbcType="VARCHAR" property="targetUnionRelation"/>
+        <result column="create_by" jdbcType="VARCHAR" property="createBy"/>
+        <result column="create_time" jdbcType="BIGINT" property="createTime"/>
+
+        <result column="sourceTableName" jdbcType="VARCHAR" property="sourceTableName"/>
+        <result column="sourceTableFieldName" jdbcType="VARCHAR" property="sourceTableFieldName"/>
+        <result column="targetTableName" jdbcType="VARCHAR" property="targetTableName"/>
+        <result column="targetTableFieldName" jdbcType="VARCHAR" property="targetTableFieldName"/>
+    </resultMap>
+
+    <select id="selectBySourceTableId" resultMap="BaseResultMap" parameterType="java.lang.String">
+        select dtu.*,dt.name as sourceTableName,dtf.name as sourceTableFieldName,dt1.name as targetTableName,dtf1.name as targetTableFieldName
+        from dataset_table_union dtu
+        left join dataset_table dt on dt.id = dtu.source_table_id
+        left join dataset_table_field dtf on dtf.id = dtu.source_table_field_id
+        left join dataset_table dt1 on dt1.id = dtu.target_table_id
+        left join dataset_table_field dtf1 on dtf1.id = dtu.target_table_field_id
+        where dtu.source_table_id = #{tableId,jdbcType=VARCHAR}
+        order by dtu.create_time
+    </select>
+
+    <select id="selectByTargetTableId" resultMap="BaseResultMap" parameterType="java.lang.String">
+        select dtu.*,dt.name as sourceTableName,dtf.name as sourceTableFieldName,dt1.name as targetTableName,dtf1.name as targetTableFieldName
+        from dataset_table_union dtu
+        left join dataset_table dt on dt.id = dtu.source_table_id
+        left join dataset_table_field dtf on dtf.id = dtu.source_table_field_id
+        left join dataset_table dt1 on dt1.id = dtu.target_table_id
+        left join dataset_table_field dtf1 on dtf1.id = dtu.target_table_field_id
+        where dtu.target_table_id = #{tableId,jdbcType=VARCHAR}
+        order by dtu.create_time
+    </select>
+</mapper>

backend/src/main/java/io/dataease/controller/dataset/DataSetTableUnionController.java

@@ -0,0 +1,35 @@
+package io.dataease.controller.dataset;
+
+import io.dataease.base.domain.DatasetTableUnion;
+import io.dataease.dto.dataset.DataSetTableUnionDTO;
+import io.dataease.service.dataset.DataSetTableUnionService;
+import org.springframework.web.bind.annotation.*;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+/**
+ * @Author gin
+ * @Date 2021/5/7 10:30 上午
+ */
+@RestController
+@RequestMapping("dataset/union")
+public class DataSetTableUnionController {
+    @Resource
+    private DataSetTableUnionService dataSetTableUnionService;
+
+    @PostMapping("save")
+    public DatasetTableUnion save(@RequestBody DatasetTableUnion datasetTableUnion) {
+        return dataSetTableUnionService.save(datasetTableUnion);
+    }
+
+    @PostMapping("delete/{id}")
+    public void delete(@PathVariable String id) {
+        dataSetTableUnionService.delete(id);
+    }
+
+    @PostMapping("listByTableId/{tableId}")
+    public List<DataSetTableUnionDTO> listByTableId(@PathVariable String tableId) {
+        return dataSetTableUnionService.listByTableId(tableId);
+    }
+}

backend/src/main/java/io/dataease/dto/dataset/DataSetTableUnionDTO.java

@@ -0,0 +1,18 @@
+package io.dataease.dto.dataset;
+
+import io.dataease.base.domain.DatasetTableUnion;
+import lombok.Getter;
+import lombok.Setter;
+
+/**
+ * @Author gin
+ * @Date 2021/5/6 6:08 下午
+ */
+@Getter
+@Setter
+public class DataSetTableUnionDTO extends DatasetTableUnion {
+    private String sourceTableName;
+    private String sourceTableFieldName;
+    private String targetTableName;
+    private String targetTableFieldName;
+}

backend/src/main/java/io/dataease/service/dataset/DataSetTableUnionService.java

@@ -0,0 +1,74 @@
+package io.dataease.service.dataset;
+
+import io.dataease.base.domain.DatasetTableUnion;
+import io.dataease.base.mapper.DatasetTableUnionMapper;
+import io.dataease.base.mapper.ext.ExtDatasetTableUnionMapper;
+import io.dataease.commons.utils.AuthUtils;
+import io.dataease.dto.dataset.DataSetTableUnionDTO;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import javax.annotation.Resource;
+import java.util.Comparator;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+/**
+ * @Author gin
+ * @Date 2021/5/6 6:03 下午
+ */
+@Service
+@Transactional
+public class DataSetTableUnionService {
+    @Resource
+    private DatasetTableUnionMapper datasetTableUnionMapper;
+    @Resource
+    private ExtDatasetTableUnionMapper extDatasetTableUnionMapper;
+
+    public DatasetTableUnion save(DatasetTableUnion datasetTableUnion) {
+        if (StringUtils.isEmpty(datasetTableUnion.getId())) {
+            datasetTableUnion.setId(UUID.randomUUID().toString());
+            datasetTableUnion.setCreateBy(AuthUtils.getUser().getUsername());
+            datasetTableUnion.setCreateTime(System.currentTimeMillis());
+            datasetTableUnionMapper.insert(datasetTableUnion);
+        } else {
+            datasetTableUnionMapper.updateByPrimaryKeySelective(datasetTableUnion);
+        }
+        return datasetTableUnion;
+    }
+
+    public void delete(String id) {
+        datasetTableUnionMapper.deleteByPrimaryKey(id);
+    }
+
+    public List<DataSetTableUnionDTO> listByTableId(String tableId) {
+        List<DataSetTableUnionDTO> sourceList = extDatasetTableUnionMapper.selectBySourceTableId(tableId);
+        List<DataSetTableUnionDTO> targetList = extDatasetTableUnionMapper.selectByTargetTableId(tableId);
+        sourceList.addAll(targetList.stream().map(ele -> {
+            DataSetTableUnionDTO dto = new DataSetTableUnionDTO();
+            dto.setId(ele.getId());
+
+            dto.setSourceTableId(ele.getTargetTableId());
+            dto.setSourceTableFieldId(ele.getTargetTableFieldId());
+            dto.setSourceTableName(ele.getTargetTableName());
+            dto.setSourceTableFieldName(ele.getTargetTableFieldName());
+
+            dto.setTargetTableId(ele.getSourceTableId());
+            dto.setTargetTableFieldId(ele.getSourceTableFieldId());
+            dto.setTargetTableName(ele.getSourceTableName());
+            dto.setTargetTableFieldName(ele.getSourceTableFieldName());
+
+            dto.setSourceUnionRelation(ele.getTargetUnionRelation());
+            dto.setTargetUnionRelation(ele.getSourceUnionRelation());
+
+            dto.setCreateBy(ele.getCreateBy());
+            dto.setCreateTime(ele.getCreateTime());
+            return dto;
+        }).collect(Collectors.toList()));
+
+        sourceList.sort(Comparator.comparing(DatasetTableUnion::getCreateTime));
+        return sourceList;
+    }
+}