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Peter Eisentraut b3617cdfbb Move portal pinning from PL/pgSQL to SPI 
PL/pgSQL "pins" internally generated (unnamed) portals so that user code
cannot close them by guessing their names.  This logic is also useful in
other languages and really for any code.  So move that logic into SPI.
An unnamed portal obtained through SPI_cursor_open() and related
functions is now automatically pinned, and SPI_cursor_close()
automatically unpins a portal that is pinned.

In the core distribution, this affects PL/Perl and PL/Python, preventing
users from manually closing cursors created by spi_query and
plpy.cursor, respectively.  (PL/Tcl does not currently offer any cursor
functionality.)

Reviewed-by: Andrew Dunstan <andrew.dunstan@2ndquadrant.com>
2018-01-10 10:20:51 -05:00
..
backend Move portal pinning from PL/pgSQL to SPI 2018-01-10 10:20:51 -05:00
bin Fix allowing of leading zero on exponents in pgbench test results 2018-01-10 11:33:37 +03:00
common Update copyright for 2018 2018-01-02 23:30:12 -05:00
fe_utils Update copyright for 2018 2018-01-02 23:30:12 -05:00
include Remove outdated/removed Win32 URLs in C comments 2018-01-09 18:33:21 -05:00
interfaces Another attempt at fixing build with various OpenSSL versions 2018-01-04 19:09:27 -05:00
makefiles Always use -fPIC, not -fpic, when building shared libraries with gcc. 2017-06-01 13:32:55 -04:00
pl Move portal pinning from PL/pgSQL to SPI 2018-01-10 10:20:51 -05:00
port Update copyright for 2018 2018-01-02 23:30:12 -05:00
template Force "restrict" not to be used when compiling with xlc. 2017-10-13 12:15:06 -07:00
test Implement TZH and TZM timestamp format patterns 2018-01-09 14:25:05 -05:00
timezone Update copyright for 2018 2018-01-02 23:30:12 -05:00
tools Expression evaluation based aggregate transition invocation. 2018-01-09 13:25:38 -08:00
tutorial Update copyright for 2018 2018-01-02 23:30:12 -05:00
.gitignore
DEVELOPERS
Makefile Build src/test/isolation during "make" and "make install". 2017-11-22 20:18:15 -08:00
Makefile.global.in Convert documentation to DocBook XML 2017-11-23 09:44:28 -05:00
Makefile.shlib Remove support for bcc and msvc standalone libpq builds 2017-04-11 15:22:21 +02:00
nls-global.mk nls-global.mk: search build dir for source files, too 2016-06-07 18:55:18 -04:00