Extend sortsupport for text to more opclasses.

Have varlena.c expose an interface that allows the char(n), bytea, and
bpchar types to piggyback on a now-generalized SortSupport for text.
This pushes a little more knowledge of the bpchar/char(n) type into
varlena.c than might be preferred, but that seems like the approach
that creates least friction.  Also speed things up for index builds
that use text_pattern_ops or varchar_pattern_ops.

This patch does quite a bit of renaming, but it seems likely to be
worth it, so as to avoid future confusion about the fact that this code
is now more generally used than the old names might have suggested.

Peter Geoghegan, reviewed by Álvaro Herrera and Andreas Karlsson,
with small tweaks by me.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/include/catalog/pg_amproc.h b/src/include/catalog/pg_amproc.h
index e75da76b99..f0ae008704 100644
--- a/src/include/catalog/pg_amproc.h
+++ b/src/include/catalog/pg_amproc.h
@@ -80,7 +80,9 @@ DATA(insert (	421   702 702 1 357 ));
 DATA(insert (	423   1560 1560 1 1596 ));
 DATA(insert (	424   16 16 1 1693 ));
 DATA(insert (	426   1042 1042 1 1078 ));
+DATA(insert (	426   1042 1042 2 3328 ));
 DATA(insert (	428   17 17 1 1954 ));
+DATA(insert (	428   17 17 2 3331 ));
 DATA(insert (	429   18 18 1 358 ));
 DATA(insert (	434   1082 1082 1 1092 ));
 DATA(insert (	434   1082 1082 2 3136 ));
@@ -128,7 +130,9 @@ DATA(insert (	1996   1083 1083 1 1107 ));
 DATA(insert (	2000   1266 1266 1 1358 ));
 DATA(insert (	2002   1562 1562 1 1672 ));
 DATA(insert (	2095   25 25 1 2166 ));
+DATA(insert (	2095   25 25 2 3332 ));
 DATA(insert (	2097   1042 1042 1 2180 ));
+DATA(insert (	2097   1042 1042 2 3333 ));
 DATA(insert (	2099   790 790 1  377 ));
 DATA(insert (	2233   703 703 1  380 ));
 DATA(insert (	2234   704 704 1  381 ));