Files
neon/pgxn/neon/Makefile
Anastasia Lubennikova 86e8c43ddf Add downgrade scripts for neon extension. (#7065)
## Problem

When we start compute with newer version of extension (i.e. 1.2) and
then rollback the release, downgrading the compute version, next compute
start will try to update extension to the latest version available in
neon.control (i.e. 1.1).

Thus we need to provide downgrade scripts like neon--1.2--1.1.sql

These scripts must revert the changes made by the upgrade scripts in the
reverse order. This is necessary to ensure that the next upgrade will
work correctly.

In general, we need to write upgrade and downgrade scripts to be more
robust and add IF EXISTS / CREATE OR REPLACE clauses to all statements
(where applicable).

## Summary of changes
Adds downgrade scripts.
Adds test cases for extension downgrade/upgrade. 

fixes #7066

This is a follow-up for
https://app.incident.io/neondb/incidents/167?tab=follow-ups

Signed-off-by: Alex Chi Z <chi@neon.tech>
Co-authored-by: Alex Chi Z <iskyzh@gmail.com>
Co-authored-by: Anastasia Lubennikova <anastasia@neon.tech>
2024-03-08 20:42:35 +00:00

59 lines
1.4 KiB
Makefile

# pgxs/neon/Makefile
MODULE_big = neon
OBJS = \
$(WIN32RES) \
extension_server.o \
file_cache.o \
libpagestore.o \
neon.o \
neon_utils.o \
neon_walreader.o \
pagestore_smgr.o \
relsize_cache.o \
walproposer.o \
walproposer_pg.o \
control_plane_connector.o
PG_CPPFLAGS = -I$(libpq_srcdir)
SHLIB_LINK_INTERNAL = $(libpq)
SHLIB_LINK = -lcurl
EXTENSION = neon
DATA = neon--1.0.sql neon--1.0--1.1.sql neon--1.1--1.2.sql neon--1.2--1.3.sql neon--1.3--1.2.sql neon--1.2--1.1.sql neon--1.1--1.0.sql
PGFILEDESC = "neon - cloud storage for PostgreSQL"
EXTRA_CLEAN = \
libwalproposer.a
WALPROP_OBJS = \
$(WIN32RES) \
walproposer.o \
neon_utils.o \
walproposer_compat.o
.PHONY: walproposer-lib
walproposer-lib: CPPFLAGS += -DWALPROPOSER_LIB
walproposer-lib: libwalproposer.a;
.PHONY: libwalproposer.a
libwalproposer.a: $(WALPROP_OBJS)
rm -f $@
$(AR) $(AROPT) $@ $^
# needs vars:
# FIND_TYPEDEF pointing to find_typedef
# INDENT pointing to pg_bsd_indent
# PGINDENT_SCRIPT pointing to pgindent (be careful with PGINDENT var name:
# pgindent will pick it up as pg_bsd_indent path).
.PHONY: pgindent
pgindent:
+@ echo top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) srcdir=$(srcdir)
$(FIND_TYPEDEF) . > neon.typedefs
INDENT=$(INDENT) $(PGINDENT_SCRIPT) --typedefs neon.typedefs $(srcdir)/*.c $(srcdir)/*.h
PG_CONFIG = pg_config
PGXS := $(shell $(PG_CONFIG) --pgxs)
include $(PGXS)