oushudb如何查看建表语句

补充了一部分，可以把分区表的建表语句也打出来

CREATE OR REPLACE FUNCTION show_create_table(p_table_name varchar)
  RETURNS text AS
$BODY$
DECLARE
    v_table_ddl   text;
	partition_ddl text;
	pType 		  text;
	pCol 		  text;
	sql1		  text;
    column_record record;
BEGIN
    FOR column_record IN 
        SELECT 
            b.nspname as schema_name,
            b.relname as table_name,
            a.attname as column_name,
            pg_catalog.format_type(a.atttypid, a.atttypmod) as column_type,
            CASE WHEN 
                (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
                 FROM pg_catalog.pg_attrdef d
                 WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef) IS NOT NULL THEN
                'DEFAULT '|| (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
                              FROM pg_catalog.pg_attrdef d
                              WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef)
            ELSE
                ''
            END as column_default_value,
            CASE WHEN a.attnotnull = true THEN 
                'NOT NULL'
            ELSE
                'NULL'
            END as column_not_null,
            a.attnum as attnum,
            e.max_attnum as max_attnum
        FROM 
            pg_catalog.pg_attribute a
            INNER JOIN 
             (SELECT c.oid,
                n.nspname,
                c.relname
              FROM pg_catalog.pg_class c
                   LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
              WHERE c.relname ~ ('^('||p_table_name||')$')
                AND pg_catalog.pg_table_is_visible(c.oid)
              ORDER BY 2, 3) b
            ON a.attrelid = b.oid
            INNER JOIN 
             (SELECT 
                  a.attrelid,
                  max(a.attnum) as max_attnum
              FROM pg_catalog.pg_attribute a
              WHERE a.attnum > 0 
                AND NOT a.attisdropped
              GROUP BY a.attrelid) e
            ON a.attrelid=e.attrelid
        WHERE a.attnum > 0 
          AND NOT a.attisdropped
        ORDER BY a.attnum
    LOOP
        IF column_record.attnum = 1 THEN
            v_table_ddl:='CREATE TABLE '||column_record.schema_name||'.'||column_record.table_name||' (';
        ELSE
            v_table_ddl:=v_table_ddl||',';
        END IF;
 
        IF column_record.attnum <= column_record.max_attnum THEN
            v_table_ddl:=v_table_ddl||chr(10)||
                     '    '||column_record.column_name||' '||column_record.column_type||' '||column_record.column_default_value||' '||column_record.column_not_null;
        END IF;
    END LOOP;
 
    v_table_ddl:=v_table_ddl||')';
    
	
	
	select distinct partitiontype into pType from pg_partitions where tablename=p_table_name;
	select distinct columnname into pCol from pg_partition_columns where tablename=p_table_name;
	v_table_ddl = v_table_ddl || ' PARTITION BY '|| pType ||' ('||pCol||') (';
	for sql1 in (select split_part(partitionboundary,'WITH',1) as pClause from pg_partitions where tablename=p_table_name)
		loop
			v_table_ddl := v_table_ddl ||sql1|| ',';
		end loop;
	v_table_ddl =  substring(v_table_ddl,1,length(v_table_ddl)-1);
	v_table_ddl = v_table_ddl || ');';
	RETURN v_table_ddl;
END;
$BODY$
  LANGUAGE 'plpgsql';

嗯嗯 好的 感谢

如果感兴趣的话，可以研究一下元数据表，看看怎么实现，期待

这个暂时不可以，但是可以使用 pgAdmin3 客户端 查看分区表的建表语句

这个函数分区表的建表语句也可以看到么

pg_dump -d database -s -t schema.tablename 也可以看呢