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Provide for parallel restoration from a custom format archive. Each data and

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post-data step is run in a separate worker child (a thread on Windows, a child
process elsewhere) up to the concurrent number specified by the new pg_restore
command-line --multi-thread | -m switch.

Andrew Dunstan, with some editing by Tom Lane.
This commit is contained in:
Andrew Dunstan
2009-02-02 20:07:37 +00:00
parent 3a5b773715
commit 775f1b379e
11 changed files with 1509 additions and 276 deletions
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14
src/bin/pg_dump/pg_backup.h
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@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup.h,v 1.48 2009/01/05 16:54:36 tgl Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup.h,v 1.49 2009/02/02 20:07:36 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@ -53,6 +53,14 @@ typedef enum _archiveMode
archModeRead
} ArchiveMode;
typedef enum _teSection
{
SECTION_NONE = 1, /* COMMENTs, ACLs, etc; can be anywhere */
SECTION_PRE_DATA, /* stuff to be processed before data */
SECTION_DATA, /* TABLE DATA, BLOBS, BLOB COMMENTS */
SECTION_POST_DATA /* stuff to be processed after data */
} teSection;
/*
* We may want to have some more user-readable data, but in the mean
* time this gives us some abstraction and type checking.
@ -124,6 +132,7 @@ typedef struct _restoreOptions
int suppressDumpWarnings; /* Suppress output of WARNING entries
* to stderr */
bool single_txn;
int number_of_threads;
bool *idWanted; /* array showing which dump IDs to emit */
} RestoreOptions;
@ -152,7 +161,8 @@ extern void ArchiveEntry(Archive *AHX,
const char *tag,
const char *namespace, const char *tablespace,
const char *owner, bool withOids,
const char *desc, const char *defn,
const char *desc, teSection section,
const char *defn,
const char *dropStmt, const char *copyStmt,
const DumpId *deps, int nDeps,
DataDumperPtr dumpFn, void *dumpArg);