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commit    bc93a5ab407051c382fdabc190d1d0ffd92efb60
Author:   Alexander Korotkov <akorotkov@postgresql.org>
Date:     Mon Jun 10 17:14:19 2019 +0000
First released in: 12.0, 9.6.14, 10.9, 11.4

    Fix operator naming in pg_trgm GUC option descriptions
    
    Descriptions of pg_trgm GUC options have % replaced with %% like it was
    a printf-like format.  But that's not needed since they are just plain strings.
    This commit fixed that.  Backpatch to last supported version since this error
    present from the beginning.
    
    Reported-by: Masahiko Sawada
    Discussion: https://postgr.es/m/CAD21AoAgPKODUsu9gqUFiNqEOAqedStxJ-a0sapsJXWWAVp%3Dxg%40mail.gmail.com
    Backpatch-through: 9.4


 contrib/pg_trgm/trgm_op.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/contrib/pg_trgm/trgm_op.c b/contrib/pg_trgm/trgm_op.c
index 9f26725ec21..589dbb87ad5 100644
--- a/contrib/pg_trgm/trgm_op.c
+++ b/contrib/pg_trgm/trgm_op.c
@@ -65,7 +65,7 @@ _PG_init(void)
 {
 	/* Define custom GUC variables. */
 	DefineCustomRealVariable("pg_trgm.similarity_threshold",
-							 "Sets the threshold used by the %% operator.",
+							 "Sets the threshold used by the % operator.",
 							 "Valid range is 0.0 .. 1.0.",
 							 &similarity_threshold,
 							 0.3,
@@ -77,7 +77,7 @@ _PG_init(void)
 							 NULL,
 							 NULL);
 	DefineCustomRealVariable("pg_trgm.word_similarity_threshold",
-							 "Sets the threshold used by the <%% operator.",
+							 "Sets the threshold used by the <% operator.",
 							 "Valid range is 0.0 .. 1.0.",
 							 &word_similarity_threshold,
 							 0.6,
@@ -89,7 +89,7 @@ _PG_init(void)
 							 NULL,
 							 NULL);
 	DefineCustomRealVariable("pg_trgm.strict_word_similarity_threshold",
-							 "Sets the threshold used by the <<%% operator.",
+							 "Sets the threshold used by the <<% operator.",
 							 "Valid range is 0.0 .. 1.0.",
 							 &strict_word_similarity_threshold,
 							 0.5,


[parent: 19dc23a5ef75]