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Partial data recovery (-D flag).

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This feature allows to partially recover data from a given segment file
in format suitable for using in COPY FROM statement. List of supported
data types is currently not full and TOAST is not yet supported, but
it's better than nothing. Hopefully data recovery will be improved in
the future.

Implemented by Aleksander Alekseev, reviewed by Dmitry Ivanov, tested
by Dmitry Ivanov and Grigoriy Smolkin.
This commit is contained in:
Teodor Sigaev
2017-01-17 16:01:12 +03:00
parent bcacee1283
commit 52fa0201f9
9 changed files with 1828 additions and 7 deletions
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15
Makefile
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@ -14,16 +14,25 @@ PGSQL_LIB_DIR=$(shell $(PG_CONFIG) --libdir)
PGSQL_BIN_DIR=$(shell $(PG_CONFIG) --bindir)
DISTFILES= README.pg_filedump Makefile Makefile.contrib \
pg_filedump.h pg_filedump.c
pg_filedump.h pg_filedump.c decode.h decode.c stringinfo.c pg_lzcompress.c
all: pg_filedump
pg_filedump: pg_filedump.o
${CC} ${PGSQL_LDFLAGS} ${LDFLAGS} -o pg_filedump pg_filedump.o -L${PGSQL_LIB_DIR} -lpgport
pg_filedump: pg_filedump.o decode.o stringinfo.o pg_lzcompress.o
${CC} ${PGSQL_LDFLAGS} ${LDFLAGS} -o pg_filedump pg_filedump.o decode.o stringinfo.o pg_lzcompress.o -L${PGSQL_LIB_DIR} -lpgport
pg_filedump.o: pg_filedump.c
${CC} ${PGSQL_CFLAGS} ${CFLAGS} -I${PGSQL_INCLUDE_DIR} pg_filedump.c -c
decode.o: decode.c
${CC} ${PGSQL_CFLAGS} ${CFLAGS} -I${PGSQL_INCLUDE_DIR} decode.c -c
stringinfo.o: stringinfo.c
${CC} ${PGSQL_CFLAGS} ${CFLAGS} -I${PGSQL_INCLUDE_DIR} stringinfo.c -c
pg_lzcompress.o: pg_lzcompress.c
${CC} ${PGSQL_CFLAGS} ${CFLAGS} -I${PGSQL_INCLUDE_DIR} pg_lzcompress.c -c
dist:
rm -rf pg_filedump-${FD_VERSION} pg_filedump-${FD_VERSION}.tar.gz
mkdir pg_filedump-${FD_VERSION}