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Update pg_control processing for PostgreSQL 12

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This commit is contained in:
Ian Barwick
2019-04-18 09:31:33 +09:00
parent 3115face28
commit 64c4cb81d5
2 changed files with 78 additions and 1 deletions
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13
controldata.c
View File

@@ -310,7 +310,18 @@ get_controlfile(const char *DataDir)
control_file_info->control_file_processed = true;
if (version_num >= 110000)
if (version_num >= 120000)
{
ControlFileData12 *ptr = (struct ControlFileData12 *)ControlFileDataPtr;
control_file_info->system_identifier = ptr->system_identifier;
control_file_info->state = ptr->state;
control_file_info->checkPoint = ptr->checkPoint;
control_file_info->data_checksum_version = ptr->data_checksum_version;
control_file_info->timeline = ptr->checkPointCopy.ThisTimeLineID;
control_file_info->minRecoveryPointTLI = ptr->minRecoveryPointTLI;
control_file_info->minRecoveryPoint = ptr->minRecoveryPoint;
}
else if (version_num >= 110000)
{
ControlFileData11 *ptr = (struct ControlFileData11 *)ControlFileDataPtr;
control_file_info->system_identifier = ptr->system_identifier;

66
controldata.h
View File

@@ -333,6 +333,72 @@ typedef struct ControlFileData11
} ControlFileData11;
/*
* Following field added in Pg12:
*
* int max_wal_senders;
*
* Following fields removed:
*
* uint32 nextXidEpoch;
* TransactionId nextXid;
*
* and replaced by:
*
* FullTransactionId nextFullXid;
*/
typedef struct ControlFileData12
{
uint64 system_identifier;
uint32 pg_control_version; /* PG_CONTROL_VERSION */
uint32 catalog_version_no; /* see catversion.h */
DBState state; /* see enum above */
pg_time_t time; /* time stamp of last pg_control update */
XLogRecPtr checkPoint; /* last check point record ptr */
CheckPoint checkPointCopy; /* copy of last check point record */
XLogRecPtr unloggedLSN; /* current fake LSN value, for unlogged rels */
XLogRecPtr minRecoveryPoint;
TimeLineID minRecoveryPointTLI;
XLogRecPtr backupStartPoint;
XLogRecPtr backupEndPoint;
bool backupEndRequired;
int wal_level;
bool wal_log_hints;
int MaxConnections;
int max_worker_processes;
int max_wal_senders;
int max_prepared_xacts;
int max_locks_per_xact;
bool track_commit_timestamp;
uint32 maxAlign; /* alignment requirement for tuples */
double floatFormat; /* constant 1234567.0 */
uint32 blcksz; /* data block size for this DB */
uint32 relseg_size; /* blocks per segment of large relation */
uint32 xlog_blcksz; /* block size within WAL files */
uint32 xlog_seg_size; /* size of each WAL segment */
uint32 nameDataLen; /* catalog name field width */
uint32 indexMaxKeys; /* max number of columns in an index */
uint32 toast_max_chunk_size; /* chunk size in TOAST tables */
uint32 loblksize; /* chunk size in pg_largeobject */
bool float4ByVal; /* float4 pass-by-value? */
bool float8ByVal; /* float8, int8, etc pass-by-value? */
uint32 data_checksum_version;
} ControlFileData12;
extern int get_pg_version(const char *data_directory, char *version_string);
extern DBState get_db_state(const char *data_directory);
extern const char *describe_db_state(DBState state);