From 90bbeb195deed468decbd03af713512a990c1938 Mon Sep 17 00:00:00 2001
From: Robert Haas <rhaas@postgresql.org>
Date: Tue, 15 Nov 2011 20:34:47 -0500
Subject: [PATCH] Don't elide blank lines when accumulating psql command
history.
This can change the meaning of queries, if the blank line happens to
occur in the middle of a quoted literal, as per complaint from Tomas Vondra.
Back-patch to all supported branches.
---
src/bin/psql/input.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/bin/psql/input.c b/src/bin/psql/input.c
index d28fe9c0ba..56aa1bf702 100644
--- a/src/bin/psql/input.c
+++ b/src/bin/psql/input.c
@@ -95,10 +95,10 @@ void
pg_append_history(const char *s, PQExpBuffer history_buf)
{
#ifdef USE_READLINE
- if (useHistory && s && s[0])
+ if (useHistory && s)
{
appendPQExpBufferStr(history_buf, s);
- if (s[strlen(s) - 1] != '\n')
+ if (!s[0] || s[strlen(s) - 1] != '\n')
appendPQExpBufferChar(history_buf, '\n');
}
#endif
--
2.49.0