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Tom Lane 220db7ccd8 Simplify and standardize conversions between TEXT datums and ordinary C ... strings. This patch introduces four support functions cstring_to_text, cstring_to_text_with_len, text_to_cstring, and text_to_cstring_buffer, and two macros CStringGetTextDatum and TextDatumGetCString. A number of existing macros that provided variants on these themes were removed. Most of the places that need to make such conversions now require just one function or macro call, in place of the multiple notational layers that used to be needed. There are no longer any direct calls of textout or textin, and we got most of the places that were using handmade conversions via memcpy (there may be a few still lurking, though). This commit doesn't make any serious effort to eliminate transient memory leaks caused by detoasting toasted text objects before they reach text_to_cstring. We changed PG_GETARG_TEXT_P to PG_GETARG_TEXT_PP in a few places where it was easy, but much more could be done. Brendan Jurd and Tom Lane		18 years ago
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data	Add ltree data type to contrib, from Teodor Sigaev and Oleg Bartunov.	24 years ago
expected	Fix a few contrib regression test scripts that hadn't gotten the word	18 years ago
sql	Fix a few contrib regression test scripts that hadn't gotten the word	18 years ago
Makefile	Remove references to READMEs from /contrib Makefiles.	18 years ago
_ltree_gist.c	Run pgindent on remaining files now that LOOPBYTE is a usable macro.	18 years ago
_ltree_op.c	Fix up several contrib modules that were using varlena datatypes in not-so-obvious	19 years ago
crc32.c	Fix compile warning on Solaris, per buildfarm. (Why have we got	19 years ago
crc32.h	Add CVS tag lines to files that were lacking them.	20 years ago
lquery_op.c	pgindent run for 8.2.	19 years ago
ltree.h	Modify LOOPBYTE/LOOPBIT macros to be more logical; rather than have the	18 years ago
ltree.sql.in	Add CVS version labels to all install/uninstall scripts.	18 years ago
ltree_gist.c	Run pgindent on remaining files now that LOOPBYTE is a usable macro.	18 years ago
ltree_io.c	Fix up several contrib modules that were using varlena datatypes in not-so-obvious	19 years ago
ltree_op.c	Simplify and standardize conversions between TEXT datums and ordinary C	18 years ago
ltreetest.sql	Add CVS version labels to all install/uninstall scripts.	18 years ago
ltxtquery_io.c	Re-run pgindent with updated list of typedefs. (Updated README should	18 years ago
ltxtquery_op.c	Re-run pgindent with updated list of typedefs. (Updated README should	18 years ago
uninstall_ltree.sql	Add CVS version labels to all install/uninstall scripts.	18 years ago