[Asterisk-code-review] res config pgsql: Fix removed support to previous for versio... (asterisk[master])

[Joshua Colp]

Joshua Colp has submitted this change and it was merged. ( https://gerrit.asterisk.org/6552 )

Change subject: res_config_pgsql: Fix removed support to previous for versions PostgreSQL 9.1
......................................................................

res_config_pgsql: Fix removed support to previous for versions PostgreSQL 9.1

In PostgreSQL 9.1 the backslash are string literals and not the escape
of characters.

In previous issue ASTERISK_26057 was fixed the use of escape LIKE but the
support for old version of Postgresql than 9.1 was dropped. The sentence
before make was "ESCAPE '\'" but in version before than 9.1  need it to be
as follow "ESCAPE '\\'".

ASTERISK-27283

Change-Id: I96d9ee1ed7693ab17503cb36a9cd72847165f949
---
M res/res_config_pgsql.c
1 file changed, 2 insertions(+), 1 deletion(-)

Approvals:
  Sean Bright: Looks good to me, but someone else must approve
  George Joseph: Looks good to me, approved
  Joshua Colp: Approved for Submit



diff --git a/res/res_config_pgsql.c b/res/res_config_pgsql.c
index 536c9e1..2310f39 100644
--- a/res/res_config_pgsql.c
+++ b/res/res_config_pgsql.c
@@ -52,6 +52,7 @@
 static PGconn *pgsqlConn = NULL;
 static int version;
 #define has_schema_support	(version > 70300 ? 1 : 0)
+#define USE_BACKSLASH_AS_STRING	(version >= 90100 ? 1 : 0)
 
 #define MAX_DB_OPTION_SIZE 64
 
@@ -384,7 +385,7 @@
 }
 
 #define IS_SQL_LIKE_CLAUSE(x) ((x) && ast_ends_with(x, " LIKE"))
-static char *ESCAPE_CLAUSE = " ESCAPE '\\'";
+#define ESCAPE_CLAUSE (USE_BACKSLASH_AS_STRING ? " ESCAPE '\\'" : " ESCAPE '\\\\'")
 
 static struct ast_variable *realtime_pgsql(const char *database, const char *tablename, const struct ast_variable *fields)
 {

-- 
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Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I96d9ee1ed7693ab17503cb36a9cd72847165f949
Gerrit-Change-Number: 6552
Gerrit-PatchSet: 2
Gerrit-Owner: Rodrigo Ramirez Norambuena <a at rodrigoramirez.com>
Gerrit-Reviewer: George Joseph <gjoseph at digium.com>
Gerrit-Reviewer: Jenkins2
Gerrit-Reviewer: Joshua Colp <jcolp at digium.com>
Gerrit-Reviewer: Richard Mudgett <rmudgett at digium.com>
Gerrit-Reviewer: Rodrigo Ramirez Norambuena <a at rodrigoramirez.com>
Gerrit-Reviewer: Sean Bright <sean.bright at gmail.com>
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