[Asterisk-code-review] cdr_pgsql cel_pgsql res_config_pgsql: compatibility with PostgreSQL 12 (...asterisk[16])

[Christoph Moench-Tegeder]

Christoph Moench-Tegeder has uploaded this change for review. ( https://gerrit.asterisk.org/c/asterisk/+/13025


Change subject: cdr_pgsql cel_pgsql res_config_pgsql: compatibility with PostgreSQL 12
......................................................................

cdr_pgsql cel_pgsql res_config_pgsql: compatibility with PostgreSQL 12

PostgreSQL 12 finally removed column adsrc from table pg_catalog.pg_attrdef
(column default values), which has been deprecated since version 8.0.
Since then, the official/correct/supported way to retrieve the column
default value from the catalog is function pg_catalog.pg_get_expr().

This change breaks compatibility with pre-8.0 PostgreSQL servers,
but has reached end-of-support more than a decade ago.
cdr_pgsql and res_config_pgsql still have support for pre-7.3
servers, but cleaning that up is perhaps a topic for a major release,
not this bugfix.

Change-Id: I834cb3addf1937e19e87ede140bdd16cea531ebe
---
M cdr/cdr_pgsql.c
M cel/cel_pgsql.c
M res/res_config_pgsql.c
3 files changed, 3 insertions(+), 3 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/25/13025/1

diff --git a/cdr/cdr_pgsql.c b/cdr/cdr_pgsql.c
index 1a3f9d6..56d2c6d 100644
--- a/cdr/cdr_pgsql.c
+++ b/cdr/cdr_pgsql.c
@@ -707,7 +707,7 @@
 			schemaname = ast_alloca(strlen(tmp_schemaname) * 2 + 1);
 			PQescapeStringConn(conn, schemaname, tmp_schemaname, strlen(tmp_schemaname), NULL);
 
-			snprintf(sqlcmd, sizeof(sqlcmd), "SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod FROM (((pg_catalog.pg_class c INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace AND c.relname = '%s' AND n.nspname = %s%s%s) INNER JOIN pg_catalog.pg_attribute a ON (NOT a.attisdropped) AND a.attnum > 0 AND a.attrelid = c.oid) INNER JOIN pg_catalog.pg_type t ON t.oid = a.atttypid) LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum ORDER BY n.nspname, c.relname, attnum",
+			snprintf(sqlcmd, sizeof(sqlcmd), "SELECT a.attname, t.typname, a.attlen, a.attnotnull, pg_catalog.pg_get_expr(d.adbin, d.adrelid) adsrc, a.atttypmod FROM (((pg_catalog.pg_class c INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace AND c.relname = '%s' AND n.nspname = %s%s%s) INNER JOIN pg_catalog.pg_attribute a ON (NOT a.attisdropped) AND a.attnum > 0 AND a.attrelid = c.oid) INNER JOIN pg_catalog.pg_type t ON t.oid = a.atttypid) LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum ORDER BY n.nspname, c.relname, attnum",
 				tablename,
 				ast_strlen_zero(schemaname) ? "" : "'", ast_strlen_zero(schemaname) ? "current_schema()" : schemaname, ast_strlen_zero(schemaname) ? "" : "'");
 		} else {
diff --git a/cel/cel_pgsql.c b/cel/cel_pgsql.c
index 77dd46a..4accd56 100644
--- a/cel/cel_pgsql.c
+++ b/cel/cel_pgsql.c
@@ -597,7 +597,7 @@
 			PQescapeStringConn(conn, schemaname, schema, lenschema, NULL);
 
 			snprintf(sqlcmd, sizeof(sqlcmd),
-			"SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod "
+			"SELECT a.attname, t.typname, a.attlen, a.attnotnull, pg_catalog.pg_get_expr(d.adbin, d.adrelid) adsrc, a.atttypmod "
 			"FROM (((pg_catalog.pg_class c INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace "
 			         "AND c.relname = '%s' AND n.nspname = %s%s%s) "
 			       "INNER JOIN pg_catalog.pg_attribute a ON ("
diff --git a/res/res_config_pgsql.c b/res/res_config_pgsql.c
index c8660fb..63eabf8 100644
--- a/res/res_config_pgsql.c
+++ b/res/res_config_pgsql.c
@@ -292,7 +292,7 @@
 		schemaname = ast_alloca(strlen(tmp_schemaname) * 2 + 1);
 		PQescapeStringConn(pgsqlConn, schemaname, tmp_schemaname, strlen(tmp_schemaname), NULL);
 
-		ast_str_set(&sql, 0, "SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod FROM (((pg_catalog.pg_class c INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace AND c.relname = '%s' AND n.nspname = %s%s%s) INNER JOIN pg_catalog.pg_attribute a ON (NOT a.attisdropped) AND a.attnum > 0 AND a.attrelid = c.oid) INNER JOIN pg_catalog.pg_type t ON t.oid = a.atttypid) LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum ORDER BY n.nspname, c.relname, attnum",
+		ast_str_set(&sql, 0, "SELECT a.attname, t.typname, a.attlen, a.attnotnull, pg_catalog.pg_get_expr(d.adbin, d.adrelid) adsrc, a.atttypmod FROM (((pg_catalog.pg_class c INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace AND c.relname = '%s' AND n.nspname = %s%s%s) INNER JOIN pg_catalog.pg_attribute a ON (NOT a.attisdropped) AND a.attnum > 0 AND a.attrelid = c.oid) INNER JOIN pg_catalog.pg_type t ON t.oid = a.atttypid) LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum ORDER BY n.nspname, c.relname, attnum",
 			tablename,
 			ast_strlen_zero(schemaname) ? "" : "'", ast_strlen_zero(schemaname) ? "current_schema()" : schemaname, ast_strlen_zero(schemaname) ? "" : "'");
 	} else {

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Gerrit-Project: asterisk
Gerrit-Branch: 16
Gerrit-Change-Id: I834cb3addf1937e19e87ede140bdd16cea531ebe
Gerrit-Change-Number: 13025
Gerrit-PatchSet: 1
Gerrit-Owner: Christoph Moench-Tegeder <cmt at burggraben.net>
Gerrit-MessageType: newchange
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