♻️ 重构 GeneratorPostgresqlMapper 命名优化支持 PG数据库

(cherry picked from commit 335549fc99d945c74d01205ea756cfd2cffc6225)

pigx-visual/pigx-codegen/src/main/resources/mapper/GeneratorPostgresqlMapper.xml

@@ -0,0 +1,57 @@
+<?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="com.pig4cloud.pigx.codegen.mapper.GeneratorPostgresqlMapper">
+
+	<select id="queryTable" resultType="map">
+		SELECT
+			relname AS "tableName",
+			obj_description ( oid ) AS "tableComment"
+		FROM
+			pg_class pc
+		WHERE
+			relkind = 'r'
+		AND relname NOT LIKE'pg_%'
+		AND relname NOT LIKE'sql_%'
+		AND relchecks = 0
+		<if test="tableName != null and tableName.trim() != ''">
+			and pc.relname = #{tableName}
+		</if>
+		ORDER BY relname
+	</select>
+
+
+	<sql id="queryColumn">
+		SELECT
+			'pg' AS "dbType",
+			pa.attname AS "columnName",
+			pg_type.typname AS "columnType",
+			pg_type.typname AS "dataType",
+			col_description ( pa.attrelid, pa.attnum ) AS "comments",
+			(
+			CASE
+					pcon.contype
+					WHEN 'p' THEN
+					'PRI' ELSE''
+				END
+				) AS "columnKey"
+			FROM
+				pg_class AS pc,
+				pg_attribute AS pa
+				INNER JOIN pg_type ON pg_type.oid = pa.atttypid
+				LEFT JOIN pg_constraint pcon ON pa.attnum = pcon.conkey[1]
+				AND pa.attrelid = pcon.conrelid
+			WHERE
+				pc.relname = #{ tableName }
+			AND pa.attrelid = pc.oid
+			AND pa.attnum > 0
+	</sql>
+
+	<select id="selectTableColumn" resultType="com.pig4cloud.pigx.codegen.entity.ColumnEntity">
+		<include refid="queryColumn"/>
+	</select>
+
+	<select id="selectMapTableColumn" resultType="map">
+		<include refid="queryColumn"/>
+	</select>
+</mapper>