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pgroonga.c
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pgroonga.c
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#include "pgroonga.h"
#include "pgrn-compatible.h"
#include "pgrn-alias.h"
#include "pgrn-auto-close.h"
#include "pgrn-command-escape-value.h"
#include "pgrn-convert.h"
#include "pgrn-crash-safer-statuses.h"
#include "pgrn-create.h"
#include "pgrn-ctid.h"
#include "pgrn-file.h"
#include "pgrn-full-text-search-condition.h"
#include "pgrn-global.h"
#include "pgrn-groonga.h"
#include "pgrn-groonga-tuple-is-alive.h"
#include "pgrn-highlight-html.h"
#include "pgrn-index-status.h"
#include "pgrn-jsonb.h"
#include "pgrn-keywords.h"
#include "pgrn-match-positions-byte.h"
#include "pgrn-match-positions-character.h"
#include "pgrn-normalize.h"
#include "pgrn-options.h"
#include "pgrn-pg.h"
#include "pgrn-portable.h"
#include "pgrn-query-expand.h"
#include "pgrn-query-extract-keywords.h"
#include "pgrn-row-level-security.h"
#include "pgrn-search.h"
#include "pgrn-sequential-search.h"
#include "pgrn-string.h"
#include "pgrn-tokenize.h"
#include "pgrn-trace-log.h"
#include "pgrn-value.h"
#include "pgrn-variables.h"
#include "pgrn-wal.h"
#include "pgrn-writable.h"
#include <access/amapi.h>
#include <access/reloptions.h>
#include <access/relscan.h>
#ifdef PGRN_SUPPORT_TABLEAM
# include <access/tableam.h>
#endif
#include <catalog/catalog.h>
#include <catalog/index.h>
#include <catalog/pg_type.h>
#ifdef PGRN_SUPPORT_PROGRESS
# include <commands/progress.h>
#endif
#ifdef PGRN_INDEX_AM_ROUTINE_HAVE_AM_PARALLEL_VACUUM_OPTIONS
# include <commands/vacuum.h>
#endif
#include <mb/pg_wchar.h>
#include <miscadmin.h>
#include <nodes/nodeFuncs.h>
#ifdef PGRN_HAVE_OPTIMIZER_H
# include <optimizer/optimizer.h>
#else
# include <optimizer/clauses.h>
# include <optimizer/cost.h>
#endif
#include <pgstat.h>
#include <storage/bufmgr.h>
#include <storage/ipc.h>
#include <storage/latch.h>
#include <storage/smgr.h>
#include <utils/array.h>
#include <utils/builtins.h>
#include <utils/lsyscache.h>
#include <utils/memutils.h>
#include <utils/rel.h>
#include <utils/selfuncs.h>
#include <utils/snapmgr.h>
#include <utils/timestamp.h>
#include <utils/typcache.h>
#include <lib/ilist.h>
#include <groonga.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
PG_MODULE_MAGIC;
#define PROGRESS_PGROONGA_PHASE_IMPORT 2
#define PROGRESS_PGROONGA_PHASE_INDEX 3
#define PROGRESS_PGROONGA_PHASE_INDEX_LOAD 4
#define PROGRESS_PGROONGA_PHASE_INDEX_COMMIT 5
#define PROGRESS_PGROONGA_PHASE_DONE 6
static bool PGrnInitialized = false;
bool PGrnGroongaInitialized = false;
static bool PGrnCrashSaferInitialized = false;
typedef struct PGrnProcessSharedData
{
TimestampTz lastVacuumTimestamp;
} PGrnProcessSharedData;
typedef struct PGrnProcessLocalData
{
TimestampTz lastDBUnmapTimestamp;
} PGrnProcessLocalData;
static PGrnProcessSharedData *processSharedData = NULL;
static PGrnProcessLocalData processLocalData;
typedef struct PGrnBuildStateData
{
grn_obj *sourcesTable;
grn_obj *sourcesCtidColumn;
double nIndexedTuples;
bool needMaxRecordSizeUpdate;
uint32_t maxRecordSize;
MemoryContext memoryContext;
} PGrnBuildStateData;
typedef PGrnBuildStateData *PGrnBuildState;
typedef struct PGrnPrimaryKeyColumn
{
slist_node node;
AttrNumber number;
Oid type;
grn_id domain;
unsigned char flags;
grn_obj *column;
} PGrnPrimaryKeyColumn;
typedef struct PGrnScanOpaqueData
{
Relation index;
MemoryContext memoryContext;
Oid dataTableID;
grn_obj *sourcesTable;
grn_obj *sourcesCtidColumn;
grn_obj *ctidResolveTable;
grn_obj minBorderValue;
grn_obj maxBorderValue;
grn_obj *searched;
grn_obj *sorted;
grn_obj *targetTable;
grn_obj *indexCursor;
grn_table_cursor *tableCursor;
grn_obj *ctidAccessor;
grn_obj *scoreAccessor;
grn_id currentID;
grn_obj canReturns;
dlist_node node;
slist_head primaryKeyColumns;
grn_obj *scoreTargetRecords;
} PGrnScanOpaqueData;
typedef PGrnScanOpaqueData *PGrnScanOpaque;
typedef struct PGrnPrefixRKSequentialSearchData
{
grn_obj *table;
grn_obj *key;
grn_obj *resultTable;
} PGrnPrefixRKSequentialSearchData;
typedef struct PGrnParallelScanDescData {
slock_t mutex;
bool scanning;
} PGrnParallelScanDescData;
typedef PGrnParallelScanDescData *PGrnParallelScanDesc;
static bool PGrnParallelScanAcquire(IndexScanDesc scan);
static dlist_head PGrnScanOpaques = DLIST_STATIC_INIT(PGrnScanOpaques);
static unsigned int PGrnNScanOpaques = 0;
extern PGDLLEXPORT void _PG_init(void);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_score);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_score_row);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_score_ctid);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_table_name);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_command);
/*
* Naming conversions:
*
* * pgroonga_#{operation}_#{type}(operand1 #{type}, operand2 #{type})
* * e.g.: pgroonga_match_text(target text, term text)
* * true when #{operand1} #{operation} #{operand2} is true,
* false otherwise.
* * e.g.: "PGroonga is great" match "great" -> true
*
* * pgroonga_#{operation}_#{type}_array(operands1 #{type}[],
* operand2 #{type})
* * e.g.: pgroonga_match_text_array(targets text[], term text)
* * true when #{one of operands1} #{operation} #{operand2} is true,
* false otherwise.
* * e.g.: ["PGroonga is great", "PostgreSQL is great"] match "PGroonga"
* -> true
*
* * pgroonga_#{operation}_in_#{type}(operand1 #{type}, operands2 #{type}[])
* * e.g.: pgroonga_match_in_text(target text, terms text[])
* * true when #{operand1} #{operation} #{one of operands2} is true,
* false otherwise.
* * e.g.: "PGroonga is great" match ["PGroonga", "PostgreSQL"]
* -> true
*
* * pgroonga_#{operation}_in_#{type}_array(operands1 #{type}[],
* operands2 #{type}[])
* * e.g.: pgroonga_match_in_text_array(targets1 text[], terms2 text[])
* * true when #{one of operands1} #{operation} #{one of operands2} is true,
* false otherwise.
* * e.g.: ["PGroonga is great", "PostgreSQL is great"] match
* ["Groonga", "PostgreSQL"] -> true
*/
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_term_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_term_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_term_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_term_varchar_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_query_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_query_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_query_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_regexp_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_regexp_varchar);
/* v2 */
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_text_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_text_condition_with_scorers);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_text_array_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_text_array_condition_with_scorers);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_varchar_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_varchar_condition_with_scorers);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_contain_varchar_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_text_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_text_condition_with_scorers);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_text_array_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_text_array_condition_with_scorers);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_varchar_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_varchar_condition_with_scorers);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_similar_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_similar_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_similar_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_script_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_script_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_script_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_text_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_varchar_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_varchar_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_contain_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_varchar_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_contain_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_in_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_contain_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_in_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_match_in_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_in_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_contain_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_in_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_query_in_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_in_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_not_prefix_in_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_in_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_in_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_in_varchar_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_in_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_in_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_in_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_prefix_rk_in_varchar_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_regexp_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_regexp_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_regexp_in_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_regexp_in_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_text);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_text_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_varchar);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_varchar_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_query_text_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_query_text_array_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_query_varchar_array);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_equal_query_varchar_array_condition);
PGDLLEXPORT PG_FUNCTION_INFO_V1(pgroonga_handler);
static grn_ctx *ctx = NULL;
static struct PGrnBuffers *buffers = &PGrnBuffers;
static PGrnPrefixRKSequentialSearchData prefixRKSequentialSearchData;
static uint32_t
PGrnGetThreadLimit(void *data)
{
return 1;
}
static grn_encoding
PGrnGetEncoding(void)
{
int enc = GetDatabaseEncoding();
switch (enc)
{
case PG_SQL_ASCII:
case PG_UTF8:
return GRN_ENC_UTF8;
case PG_EUC_JP:
case PG_EUC_JIS_2004:
return GRN_ENC_EUC_JP;
case PG_LATIN1:
case PG_WIN1252:
return GRN_ENC_LATIN1;
case PG_KOI8R:
return GRN_ENC_KOI8R;
case PG_SJIS:
case PG_SHIFT_JIS_2004:
return GRN_ENC_SJIS;
default:
elog(WARNING,
"pgroonga: use default encoding instead of '%s'",
GetDatabaseEncodingName());
return GRN_ENC_DEFAULT;
}
}
static void PGrnScanOpaqueFin(PGrnScanOpaque so);
static void
PGrnReleaseScanOpaques(ResourceReleasePhase phase,
bool isCommit,
bool isTopLevel,
void *arg)
{
const char *tag = "pgroonga: [release][scan-opaques]";
const char *top_level_tag = isTopLevel ? "[top-level]" : "";
dlist_mutable_iter iter;
switch (phase)
{
case RESOURCE_RELEASE_BEFORE_LOCKS:
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s%s%s %u: skip",
tag,
top_level_tag,
"[before-locks]",
PGrnNScanOpaques);
return;
case RESOURCE_RELEASE_LOCKS:
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s%s%s %u: skip",
tag,
top_level_tag,
"[locks]",
PGrnNScanOpaques);
return;
case RESOURCE_RELEASE_AFTER_LOCKS:
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s%s%s[start] %u",
tag,
top_level_tag,
"[after-locks]",
PGrnNScanOpaques);
if (!isTopLevel)
return;
break;
}
dlist_foreach_modify(iter, &PGrnScanOpaques)
{
PGrnScanOpaque so;
so = dlist_container(PGrnScanOpaqueData, node, iter.cur);
PGrnScanOpaqueFin(so);
}
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s%s%s[end] %u",
tag,
top_level_tag,
"[after-locks]",
PGrnNScanOpaques);
}
static void
PGrnInitializeGroongaFunctions(void)
{
PGrnInitializeGroongaTupleIsAlive();
}
static void
PGrnFinalizePrefixRKSequentialSearchData(void)
{
grn_obj_close(ctx, prefixRKSequentialSearchData.resultTable);
grn_obj_close(ctx, prefixRKSequentialSearchData.key);
grn_obj_close(ctx, prefixRKSequentialSearchData.table);
}
static void
PGrnBeforeShmemExit(int code, Datum arg)
{
const char *tag = "pgroonga: [exit]";
if (ctx)
{
grn_obj *db;
db = grn_ctx_db(ctx);
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[db][%s]",
tag,
db ? "opened" : "not-opened");
if (db)
{
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize][auto-close]", tag);
PGrnFinalizeAutoClose();
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[finalize][normalize]", tag);
PGrnFinalizeNormalize();
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[finalize][tokenize]", tag);
PGrnFinalizeTokenize();
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[finalize][query-extract-keywords]", tag);
PGrnFinalizeQueryExtractKeywords();
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[finalize][match-positions-byte]", tag);
PGrnFinalizeMatchPositionsByte();
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[finalize][match-positions-character]", tag);
PGrnFinalizeMatchPositionsCharacter();
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize][highlight-html]", tag);
PGrnFinalizeHighlightHTML();
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize][keywords]", tag);
PGrnFinalizeKeywords();
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize][jsonb]", tag);
PGrnFinalizeJSONB();
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[finalize][sequential-search-data]", tag);
PGrnFinalizeSequentialSearch();
GRN_LOG(ctx, GRN_LOG_DEBUG,
"%s[finalize][prefix-rk-sequential-search-data]", tag);
PGrnFinalizePrefixRKSequentialSearchData();
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize][options]", tag);
PGrnFinalizeOptions();
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[db][close]", tag);
grn_obj_close(ctx, db);
}
if (PGrnCrashSaferInitialized)
{
pgrn_crash_safer_statuses_release(NULL,
MyDatabaseId,
MyDatabaseTableSpace);
PGrnCrashSaferInitialized = false;
}
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize][buffers]", tag);
PGrnFinalizeBuffers();
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize][context]", tag);
grn_ctx_fin(ctx);
}
GRN_LOG(ctx, GRN_LOG_DEBUG, "%s[finalize]", tag);
grn_fin();
PGrnGroongaInitialized = false;
PGrnInitialized = false;
}
static void
PGrnInitializePrefixRKSequentialSearchData(void)
{
prefixRKSequentialSearchData.table =
grn_table_create(ctx,
NULL, 0,
NULL,
GRN_OBJ_TABLE_PAT_KEY,
grn_ctx_at(ctx, GRN_DB_SHORT_TEXT),
NULL);
prefixRKSequentialSearchData.key =
grn_obj_column(ctx,
prefixRKSequentialSearchData.table,
GRN_COLUMN_NAME_KEY,
GRN_COLUMN_NAME_KEY_LEN);
prefixRKSequentialSearchData.resultTable =
grn_table_create(ctx,
NULL, 0,
NULL,
GRN_OBJ_TABLE_HASH_KEY | GRN_OBJ_WITH_SUBREC,
prefixRKSequentialSearchData.table,
NULL);
}
static void
PGrnInitializeDatabase(void)
{
PGrnInitializeGroongaFunctions();
PGrnInitializeAlias();
PGrnInitializeIndexStatus();
PGrnInitializeSequentialSearch();
PGrnInitializePrefixRKSequentialSearchData();
PGrnInitializeJSONB();
PGrnInitializeKeywords();
PGrnInitializeHighlightHTML();
PGrnInitializeMatchPositionsByte();
PGrnInitializeMatchPositionsCharacter();
PGrnInitializeQueryExpand();
PGrnInitializeQueryExtractKeywords();
PGrnInitializeTokenize();
PGrnInitializeNormalize();
PGrnInitializeAutoClose();
}
void
PGrnEnsureDatabase(void)
{
char *databasePath;
char path[MAXPGPATH];
if (grn_ctx_db(ctx))
return;
if (!OidIsValid(MyDatabaseId))
return;
GRN_CTX_SET_ENCODING(ctx, PGrnGetEncoding());
databasePath = GetDatabasePath(MyDatabaseId, MyDatabaseTableSpace);
join_path_components(path,
databasePath,
PGrnDatabaseBasename);
pfree(databasePath);
if (grn_ctx_get_wal_role(ctx) == GRN_WAL_ROLE_SECONDARY)
{
HTAB *statuses;
pid_t crashSaferPID;
pid_t preparePID;
bool waitFlushing = true;
statuses = pgrn_crash_safer_statuses_get();
crashSaferPID = pgrn_crash_safer_statuses_get_main_pid(statuses);
if (crashSaferPID == InvalidPid)
{
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("pgroonga: "
"pgroonga_crash_safer process doesn't exist: "
"shared_preload_libraries may not include "
"pgroonga_crash_safer")));
}
pgrn_crash_safer_statuses_use(statuses,
MyDatabaseId,
MyDatabaseTableSpace);
PGrnCrashSaferInitialized = true;
preparePID =
pgrn_crash_safer_statuses_get_prepare_pid(statuses,
MyDatabaseId,
MyDatabaseTableSpace);
if (preparePID == MyProcPid)
{
waitFlushing = false;
}
while (waitFlushing)
{
int conditions;
long timeout = 1000;
/* We need to reject any connections while preparing. If
* we accept a new connection and block the connection
* here, REINDEX by pgroonga-crash-safer may be blocked by
* the connection. */
if (pgrn_crash_safer_statuses_is_preparing(statuses,
MyDatabaseId,
MyDatabaseTableSpace))
{
ereport(ERROR,
(errcode(ERRCODE_CANNOT_CONNECT_NOW),
errmsg("pgroonga: "
"pgroonga_crash_safer is preparing")));
}
if (pgrn_crash_safer_statuses_is_flushing(statuses,
MyDatabaseId,
MyDatabaseTableSpace))
{
break;
}
kill(crashSaferPID, SIGUSR1);
conditions = WaitLatch(MyLatch,
WL_LATCH_SET |
WL_TIMEOUT |
PGRN_WL_EXIT_ON_PM_DEATH,
timeout,
PG_WAIT_EXTENSION);
if (conditions & WL_LATCH_SET)
{
ResetLatch(MyLatch);
}
CHECK_FOR_INTERRUPTS();
}
}
if (pgrn_file_exist(path))
{
grn_db_open(ctx, path);
PGrnCheck("failed to open database: <%s>", path);
}
else
{
grn_db_create(ctx, path, NULL);
PGrnCheck("failed to create database: <%s>", path);
}
PGrnInitializeDatabase();
}
void
_PG_init(void)
{
grn_rc rc;
if (PGrnInitialized)
PGrnCheckRC(GRN_UNKNOWN_ERROR,
"already tried to initialize and failed");
PGrnInitialized = true;
PGrnGroongaInitialized = false;
PGrnInitializeVariables();
grn_thread_set_get_limit_func(PGrnGetThreadLimit, NULL);
grn_default_logger_set_flags(grn_default_logger_get_flags() | GRN_LOG_PID);
rc = grn_init();
PGrnCheckRC(rc,
"failed to initialize Groonga");
grn_set_segv_handler();
grn_set_abrt_handler();
if (IsUnderPostmaster) {
bool found;
LWLockAcquire(AddinShmemInitLock, LW_EXCLUSIVE);
processSharedData =
(PGrnProcessSharedData *) ShmemInitStruct("PGrnProcessSharedData",
sizeof(PGrnProcessSharedData),
&found);
if (!found)
{
processSharedData->lastVacuumTimestamp = GetCurrentTimestamp();
}
LWLockRelease(AddinShmemInitLock);
}
processLocalData.lastDBUnmapTimestamp = GetCurrentTimestamp();
before_shmem_exit(PGrnBeforeShmemExit, 0);
RegisterResourceReleaseCallback(PGrnReleaseScanOpaques, NULL);
RegisterResourceReleaseCallback(PGrnReleaseSequentialSearch, NULL);
grn_set_default_match_escalation_threshold(PGrnMatchEscalationThreshold);
rc = grn_ctx_init(&PGrnContext, 0);
PGrnCheckRC(rc,
"failed to initialize Groonga context");
PGrnGroongaInitialized = true;
ctx = &PGrnContext;
GRN_LOG(ctx, GRN_LOG_NOTICE, "pgroonga: initialize: <%s>", PGRN_VERSION);
PGrnInitializeBuffers();
PGrnInitializeGroongaInformation();
PGrnVariablesApplyInitialValues();
PGrnInitializeOptions();
PGrnEnsureDatabase();
}
static void
PGrnUnmapDB(void)
{
PGrnFinalizeSequentialSearch();
PGrnFinalizeHighlightHTML();
grn_db_unmap(ctx, grn_ctx_db(ctx));
PGrnInitializeSequentialSearch();
PGrnInitializeHighlightHTML();
}
static bool
PGrnEnsureLatestDB(void)
{
PGRN_TRACE_LOG_ENTER();
if (!processSharedData)
{
PGRN_TRACE_LOG_EXIT();
return false;
}
if (processLocalData.lastDBUnmapTimestamp >
processSharedData->lastVacuumTimestamp)
{
PGRN_TRACE_LOG_EXIT();
return false;
}
GRN_LOG(ctx,
GRN_LOG_DEBUG,
"pgroonga: unmap DB because VACUUM was executed");
PGrnUnmapDB();
processLocalData.lastDBUnmapTimestamp = GetCurrentTimestamp();
PGRN_TRACE_LOG_EXIT();
return true;
}
static grn_id
PGrnGetType(Relation index, AttrNumber n, unsigned char *flags)
{
TupleDesc desc = RelationGetDescr(index);
Form_pg_attribute attr;
attr = TupleDescAttr(desc, n);
return PGrnPGTypeToGrnType(attr->atttypid, flags);
}
static Datum PGrnConvertToDatum(grn_obj *value, Oid typeID);
static Datum
PGrnConvertToDatumArrayType(grn_obj *vector, Oid typeID)
{
const char *tag = "[vector][groonga->postgresql-type]";
Oid elementTypeID = InvalidOid;
int elementLength = 0;
bool elementByValue = false;
char elementAlign = '\0';
int i, n;
Datum *values;
switch (typeID)
{
case INT4ARRAYOID:
elementTypeID = INT4OID;
elementLength = 4;
elementByValue = true;
elementAlign = 'i';
break;
case VARCHARARRAYOID:
elementTypeID = VARCHAROID;
elementLength = -1;
elementByValue = false;
elementAlign = 'i';
break;
case TEXTARRAYOID:
elementTypeID = TEXTOID;
elementLength = -1;
elementByValue = false;
elementAlign = 'i';
break;
default:
PGrnCheckRC(GRN_FUNCTION_NOT_IMPLEMENTED,
"%s unsupported datum array type: %u",
tag,
typeID);
break;
}
n = grn_vector_size(ctx, vector);
if (n == 0)
PG_RETURN_POINTER(construct_empty_array(elementTypeID));
values = palloc(sizeof(Datum) * n);
if (vector->header.domain == GRN_VECTOR)
{
for (i = 0; i < n; i++)
{
const char *element;
unsigned int elementSize;
text *value;
elementSize = grn_vector_get_element(ctx, vector, i,
&element,
NULL,
NULL);
value = cstring_to_text_with_len(element, elementSize);
values[i] = PointerGetDatum(value);
}
}
else
{
unsigned int elementSize = grn_uvector_element_size(ctx, vector);
grn_obj element;
GRN_VALUE_FIX_SIZE_INIT(&element,
GRN_OBJ_DO_SHALLOW_COPY,
vector->header.domain);
for (i = 0; i < n; i++)
{
const char *rawElement = GRN_BULK_HEAD(vector) + (elementSize * i);
GRN_TEXT_SET(ctx, &element, rawElement, elementSize);
values[i] = PGrnConvertToDatum(&element, elementTypeID);
}
GRN_OBJ_FIN(ctx, &element);
}
{
int dims[1];
int lbs[1];
dims[0] = n;
lbs[0] = 1;
PG_RETURN_POINTER(construct_md_array(values, NULL,
1, dims, lbs,
elementTypeID,
elementLength,
elementByValue,
elementAlign));
}
}
static Datum
PGrnConvertToDatum(grn_obj *value, Oid typeID)
{
const char *tag = "[data][groonga->postgresql]";
switch (typeID)
{
case BOOLOID:
PG_RETURN_BOOL(GRN_BOOL_VALUE(value));
break;
case INT2OID:
PG_RETURN_INT16(GRN_INT16_VALUE(value));
break;
case INT4OID:
PG_RETURN_INT32(GRN_INT32_VALUE(value));
break;
case INT8OID:
PG_RETURN_INT64(GRN_INT64_VALUE(value));
break;
case FLOAT4OID:
PG_RETURN_FLOAT4(GRN_FLOAT_VALUE(value));
break;
case FLOAT8OID:
PG_RETURN_FLOAT8(GRN_FLOAT_VALUE(value));
break;
case TIMESTAMPOID:
case TIMESTAMPTZOID:
{
int64 grnTime;
int64 sec;
int64 usec;
TimestampTz timestamp;
grnTime = GRN_TIME_VALUE(value);
GRN_TIME_UNPACK(grnTime, sec, usec);
if (typeID == TIMESTAMPOID)
{
timestamp = PGrnPGLocalTimeToTimestamp(sec);
}
else
{
/* TODO: Support not localtime time zone. */
pg_time_t unixTimeUTC = sec;
timestamp = time_t_to_timestamptz(unixTimeUTC);
}
#ifdef HAVE_INT64_TIMESTAMP
timestamp += usec;
#else
timestamp += ((double) usec) / USECS_PER_SEC;
#endif
if (typeID == TIMESTAMPOID)
PG_RETURN_TIMESTAMP(timestamp);
else
PG_RETURN_TIMESTAMPTZ(timestamp);
break;
}
case TEXTOID:
case XMLOID:
{
text *text = cstring_to_text_with_len(GRN_TEXT_VALUE(value),
GRN_TEXT_LEN(value));
PG_RETURN_TEXT_P(text);
break;
}
case VARCHAROID:
{
text *text = cstring_to_text_with_len(GRN_TEXT_VALUE(value),
GRN_TEXT_LEN(value));
PG_RETURN_VARCHAR_P((VarChar *) text);
break;
}
#ifdef NOT_USED
case POINTOID:
/* GRN_DB_TOKYO_GEO_POINT or GRN_DB_WGS84_GEO_POINT; */
break;
#endif
case INT4ARRAYOID:
case VARCHARARRAYOID:
case TEXTARRAYOID:
return PGrnConvertToDatumArrayType(value, typeID);
break;
case UUIDOID:
{
#define UUID_TEXT_SIZE 33 /* "12345678-abcd-bcde-cdef-123456789012" + '\0'*/
char uuid[UUID_TEXT_SIZE];
memcpy(uuid,
GRN_TEXT_VALUE(value),
GRN_TEXT_LEN(value) > UUID_TEXT_SIZE - 1 ?
UUID_TEXT_SIZE - 1 :
GRN_TEXT_LEN(value));
uuid[UUID_TEXT_SIZE - 1] = '\0';
#undef UUID_TEXT_SIZE
return DirectFunctionCall1(uuid_in, CStringGetDatum(uuid));
break;
}
default:
PGrnCheckRC(GRN_FUNCTION_NOT_IMPLEMENTED,
"%s unsupported datum type: %u",
tag,
typeID);
break;
}
return 0;
}
static bool
PGrnIsQueryStrategyIndex(Relation index, int nthAttribute)
{
Oid strategyOID;
Oid leftType;
Oid rightType;
leftType = index->rd_opcintype[nthAttribute];
switch (leftType)
{
case VARCHARARRAYOID:
rightType = VARCHAROID;
break;
case TEXTARRAYOID:
rightType = TEXTOID;
break;
default:
rightType = leftType;
break;
}
strategyOID = get_opfamily_member(index->rd_opfamily[nthAttribute],