From cf67d606ae9a4649a49b291090a3e3448acf8c0b Mon Sep 17 00:00:00 2001
From: 疯狂的狮子li <15040126243@163.com>
Date: 星期四, 17 三月 2022 19:52:40 +0800
Subject: [PATCH] update 初步适配 postgres (代码生成两次导入有问题)

---
 ruoyi-generator/src/main/resources/mapper/generator/GenTableColumnMapper.xml |   31 +++++++++++++++++++++++++++++++
 1 files changed, 31 insertions(+), 0 deletions(-)

diff --git a/ruoyi-generator/src/main/resources/mapper/generator/GenTableColumnMapper.xml b/ruoyi-generator/src/main/resources/mapper/generator/GenTableColumnMapper.xml
index 4614dd4..7b1e9c5 100644
--- a/ruoyi-generator/src/main/resources/mapper/generator/GenTableColumnMapper.xml
+++ b/ruoyi-generator/src/main/resources/mapper/generator/GenTableColumnMapper.xml
@@ -62,6 +62,37 @@
             ORDER BY temp.column_id
         </if>
         <if test="@com.ruoyi.common.helper.DataBaseHelper@isPostgerSql()">
+            SELECT column_name, is_required, is_pk, sort, column_comment, is_increment, column_type
+            FROM (
+                SELECT c.relname AS table_name,
+                       a.attname AS column_name,
+                       d.description AS column_comment,
+                       CASE WHEN a.attnotnull AND con.conname IS NULL THEN 1 ELSE 0
+                       END AS is_required,
+                       CASE WHEN con.conname IS NOT NULL THEN 1 ELSE 0
+                       END AS is_pk,
+                       a.attnum AS sort,
+                       CASE WHEN "position"(pg_get_expr(ad.adbin, ad.adrelid),
+                           ((c.relname::text || '_'::text) || a.attname::text) || '_seq'::text) > 0 THEN 1 ELSE 0
+                       END AS is_increment,
+                       btrim(
+                           CASE WHEN t.typelem <![CDATA[ <> ]]> 0::oid AND t.typlen = '-1'::integer THEN 'ARRAY'::text ELSE
+                                CASE WHEN t.typtype = 'd'::"char" THEN format_type(t.typbasetype, NULL::integer)
+                                ELSE format_type(a.atttypid, NULL::integer) END
+                           END, '"'::text
+                       ) AS column_type
+                FROM pg_attribute a
+                    JOIN (pg_class c JOIN pg_namespace n ON c.relnamespace = n.oid) ON a.attrelid = c.oid
+                    LEFT JOIN pg_description d ON d.objoid = c.oid AND a.attnum = d.objsubid
+                    LEFT JOIN pg_constraint con ON con.conrelid = c.oid AND (a.attnum = ANY (con.conkey))
+                    LEFT JOIN pg_attrdef ad ON a.attrelid = ad.adrelid AND a.attnum = ad.adnum
+                    LEFT JOIN pg_type t ON a.atttypid = t.oid
+                WHERE (c.relkind = ANY (ARRAY ['r'::"char", 'p'::"char"]))
+                    AND a.attnum > 0
+                    AND n.nspname = 'public'::name
+                ORDER BY c.relname, a.attnum
+            ) temp
+            WHERE table_name = (#{tableName})
         </if>
         <if test="@com.ruoyi.common.helper.DataBaseHelper@isSqlServer()">
         </if>

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