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78 lines
3.2 KiB
C
78 lines
3.2 KiB
C
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/***********************************************************************************************************************************
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PostgreSQL Info
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***********************************************************************************************************************************/
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#include "common/memContext.h"
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#include "postgres/info.h"
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#include "postgres/type.h"
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#include "postgres/version.h"
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#include "storage/helper.h"
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/***********************************************************************************************************************************
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Map control/catalog version to PostgreSQL version
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***********************************************************************************************************************************/
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static uint
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pgVersionMap(uint32_t controlVersion, uint32_t catalogVersion)
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{
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uint result = 0;
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if (controlVersion == 1002 && catalogVersion == 201707211)
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result = PG_VERSION_10;
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else if (controlVersion == 960 && catalogVersion == 201608131)
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result = PG_VERSION_96;
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else if (controlVersion == 942 && catalogVersion == 201510051)
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result = PG_VERSION_95;
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else if (controlVersion == 942 && catalogVersion == 201409291)
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result = PG_VERSION_94;
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else if (controlVersion == 937 && catalogVersion == 201306121)
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result = PG_VERSION_93;
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else if (controlVersion == 922 && catalogVersion == 201204301)
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result = PG_VERSION_92;
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else if (controlVersion == 903 && catalogVersion == 201105231)
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result = PG_VERSION_91;
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else if (controlVersion == 903 && catalogVersion == 201008051)
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result = PG_VERSION_90;
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else if (controlVersion == 843 && catalogVersion == 200904091)
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result = PG_VERSION_84;
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else if (controlVersion == 833 && catalogVersion == 200711281)
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result = PG_VERSION_83;
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else
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{
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THROW(
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VersionNotSupportedError,
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"unexpected control version = %u and catalog version = %u\n"
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"HINT: is this version of PostgreSQL supported?",
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controlVersion, catalogVersion);
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}
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return result;
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}
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/***********************************************************************************************************************************
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Get info from pg_control
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***********************************************************************************************************************************/
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PgControlInfo
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pgControlInfo(const String *pgPath)
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{
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PgControlInfo result = {0};
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MEM_CONTEXT_TEMP_BEGIN()
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{
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// Open control file for read
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StorageFileRead *controlRead = storageNewReadNP(
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storageLocal(), strNewFmt("%s/" PG_PATH_GLOBAL "/" PG_FILE_PGCONTROL, strPtr(pgPath)));
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storageFileReadOpen(controlRead);
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// Read contents
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PgControlFile *control = (PgControlFile *)bufPtr(storageFileRead(controlRead));
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// Copy to result structure and get PostgreSQL version
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result.systemId = control->systemId;
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result.controlVersion = control->controlVersion;
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result.catalogVersion = control->catalogVersion;
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result.version = pgVersionMap(result.controlVersion, result.catalogVersion);
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}
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MEM_CONTEXT_TEMP_END();
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return result;
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}
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