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sqlite_query.c
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/*-------------------------------------------------------------------------
*
* SQLite Foreign Data Wrapper for PostgreSQL
*
* Portions Copyright (c) 2018, TOSHIBA CORPORATION
*
* IDENTIFICATION
* sqlite_query.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "sqlite_fdw.h"
#ifdef SQLITE_FDW_GIS_ENABLE
#include <spatialite.h>
#endif
#include <sqlite3.h>
#include "catalog/pg_type_d.h"
#include "commands/defrem.h"
#include "mb/pg_wchar.h"
#include "nodes/makefuncs.h"
#include "parser/parse_type.h"
#include "utils/builtins.h"
#include "utils/inet.h"
#include "utils/jsonb.h"
#include "utils/lsyscache.h"
#include "utils/timestamp.h"
#include "utils/uuid.h"
static char *
get_column_option_string(Oid relid, int varattno, char *optionname);
static char *
sqlite_text_value_to_pg_db_encoding(sqlite3_value *val);
static char *
int642binstr(sqlite3_int64 num, char *s, size_t len);
static inline blobOutput
sqlite_make_JSONb (char* s);
/*
* sqlite_value_to_pg_error
* Human readable message about disallowed combination of PostgreSQL columnn
* data type and SQLite data value affinity
*/
static void
sqlite_value_to_pg_error()
{
ereport(ERROR, (errcode(ERRCODE_FDW_INVALID_DATA_TYPE),
errmsg("SQLite value is not compatible with PostgreSQL column data type")));
}
/*
* pg_column_void_text_error
* Human readable message about disallowed void text for the PostgreSQL columnn
*/
static void
pg_column_void_text_error()
{
ereport(ERROR, (errcode(ERRCODE_FDW_INVALID_DATA_TYPE),
errmsg("Void text disallowed this column")));
}
/*
* convert_sqlite_to_pg
* Converts SQLite value into PostgreSQL's Datum
*/
NullableDatum
sqlite_convert_to_pg(Form_pg_attribute att, sqlite3_value * val, AttInMetadata *attinmeta, AttrNumber attnum, int sqlite_value_affinity, int AffinityBehaviourFlags)
{
Oid pgtyp = att->atttypid;
Datum value_datum = 0;
char *valstr = NULL;
/* Compute always, void text and void BLOB is special cases */
int value_byte_size_blob_or_utf8 = sqlite3_value_bytes(val);
switch (pgtyp)
{
/* popular first */
case VARCHAROID:
case CHAROID:
case TEXTOID:
case DATEOID:
case TIMEOID:
case NAMEOID:
case BPCHAROID:
{
valstr = sqlite_text_value_to_pg_db_encoding(val);
/* use valstr after switch */
break;
}
case BOOLOID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
int value = sqlite3_value_int(val);
return (struct NullableDatum){BoolGetDatum(value), false};
}
case SQLITE_FLOAT:
case SQLITE_BLOB:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
sqlite_value_to_pg_error();
else
pg_column_void_text_error();
break;
}
default:
{
sqlite_value_to_pg_error();
break;
}
}
break;
}
case BYTEAOID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER:
case SQLITE_FLOAT:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE_BLOB: /* <-- proper and recommended SQLite affinity of value for pgtyp */
case SQLITE3_TEXT: /* treated as UTF-8 text BLOB */
{
value_datum = (Datum) palloc0(value_byte_size_blob_or_utf8 + VARHDRSZ);
memcpy(VARDATA(value_datum), sqlite3_value_blob(val), value_byte_size_blob_or_utf8);
SET_VARSIZE(value_datum, value_byte_size_blob_or_utf8 + VARHDRSZ);
return (struct NullableDatum) {PointerGetDatum((const void *)value_datum), false};
}
}
break;
}
case INT2OID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
sqlite_int64 i64v = sqlite3_value_int64(val);
Datum d = DirectFunctionCall1(int82, Int64GetDatum((int64) i64v));
return (struct NullableDatum) {d, false};
}
case SQLITE_FLOAT:
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
sqlite_value_to_pg_error();
else
pg_column_void_text_error();
break;
}
}
break;
}
case INT4OID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
sqlite_int64 i64v = sqlite3_value_int64(val);
Datum d = DirectFunctionCall1(int84, Int64GetDatum((int64) i64v));
return (struct NullableDatum) {d, false};
}
case SQLITE_FLOAT: /* TODO: This code is untill mod() pushdowning fix here */
{
int value = sqlite3_value_int(val);
elog(DEBUG2, "sqlite_fdw : real aff. was readed for pg int32");
return (struct NullableDatum) {Int32GetDatum(value), false};
}
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
sqlite_value_to_pg_error();
else
pg_column_void_text_error();
break;
}
}
break;
}
case INT8OID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
sqlite3_int64 value = sqlite3_value_int64(val);
return (struct NullableDatum) {Int64GetDatum(value), false};
}
case SQLITE_FLOAT: /* TODO: This code is untill mod() pushdowning fix here */
{
double value = sqlite3_value_double(val);
Datum d = DirectFunctionCall1(dtoi8, Float8GetDatum((float8) value));
elog(DEBUG2, "sqlite_fdw : real aff. was readed for pg int64");
return (struct NullableDatum) {d, false};
}
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
sqlite_value_to_pg_error();
else
pg_column_void_text_error();
break;
}
}
break;
}
case FLOAT4OID:
{
switch (sqlite_value_affinity)
{
case SQLITE_FLOAT: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
double value = sqlite3_value_double(val);
Datum d = DirectFunctionCall1(dtof, Float8GetDatum((float8)value));
return (struct NullableDatum) {d, false};
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
{
const char* text_value = (const char*) sqlite3_value_text(val);
if (strcasecmp(text_value, "NaN") == 0)
return (struct NullableDatum) {Float8GetDatum(NAN), false};
else
sqlite_value_to_pg_error();
}
else
pg_column_void_text_error();
break;
}
case SQLITE_INTEGER:
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
}
break;
}
case FLOAT8OID:
{
switch (sqlite_value_affinity)
{
case SQLITE_FLOAT: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
double value = sqlite3_value_double(val);
return (struct NullableDatum) {Float8GetDatum((float8) value), false};
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
{
const char* text_value = (const char*) sqlite3_value_text(val);
if (strcasecmp(text_value, "NaN") == 0)
return (struct NullableDatum) {Float8GetDatum(NAN), false};
else
sqlite_value_to_pg_error();
}
else
pg_column_void_text_error();
break;
}
case SQLITE_INTEGER:
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
}
break;
}
case TIMESTAMPOID:
case TIMESTAMPTZOID:
{
/*
* We add this conversion to allow add INTEGER/FLOAT SQLite
* Columns be added as TimeStamp in PostgreSQL. We just
* calling PostgreSQL function "to_timestamp(double value)""
* to convert each registry returned from INT/FLOAT value to
* TimeStamp string, so PosgtreSQL can handle/show without
* problems. If it's a TEXT SQLite column...we let them to the
* "regular" process because its already implemented and
* working properly.
*/
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER:
{
Timestamp value = (Timestamp)sqlite3_value_int64(val);
return (struct NullableDatum) {TimestampGetDatum(value), false};
}
case SQLITE_FLOAT:
{
double value = sqlite3_value_double(val);
Datum d = DirectFunctionCall1(float8_timestamptz, Float8GetDatum((float8) value));
return (struct NullableDatum) {d, false};
}
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
valstr = sqlite_text_value_to_pg_db_encoding(val);
/* !!! use valstr later! */
else
pg_column_void_text_error();
break;
}
}
break;
}
case NUMERICOID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER:
case SQLITE_FLOAT: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
double value = sqlite3_value_double(val);
valstr = DatumGetCString(DirectFunctionCall1(float8out, Float8GetDatum((float8) value)));
break; /* !!! use valstr later! */
}
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
{
const char* text_value = (const char*) sqlite3_value_text(val);
if (strcasecmp(text_value, "NaN") == 0)
return (struct NullableDatum) {Float8GetDatum(NAN), false};
else
sqlite_value_to_pg_error();
}
else
pg_column_void_text_error();
break;
}
}
break;
}
case UUIDOID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER:
case SQLITE_FLOAT:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE_BLOB: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
if (value_byte_size_blob_or_utf8 != UUID_LEN)
{
ereport(ERROR, (errcode(ERRCODE_FDW_INVALID_DATA_TYPE),
errmsg("PostgreSQL uuid data type allows only %d bytes SQLite blob value", UUID_LEN)));
break;
}
else
{
const unsigned char * sqlite_blob = 0;
pg_uuid_t *retval = (pg_uuid_t *) palloc0(sizeof(pg_uuid_t));
sqlite_blob = sqlite3_value_blob(val);
memcpy(retval->data, sqlite_blob, UUID_LEN);
return (struct NullableDatum){UUIDPGetDatum(retval), false};
break;
}
}
/*
* SQLite UUID output always normalized to blob.
* In sqlite_data_norm.c there is special additional C function.
*/
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
sqlite_value_to_pg_error();
else
pg_column_void_text_error();
break;
}
default:
{
sqlite_value_to_pg_error();
break;
}
}
break;
}
case MACADDROID:
case MACADDR8OID:
{
switch (sqlite_value_affinity)
{
/*
* SQLite MAC address output always normalized to int64.
* In sqlite_data_norm.c there is special additional C function.
*/
case SQLITE_INTEGER: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
sqlite3_int64 value = sqlite3_value_int64(val);
if (pgtyp == MACADDROID)
{
macaddr* retval;
/* maximal int64 for macaddr 6b */
const sqlite3_uint64 max = (1ULL << (6 * CHAR_BIT)) - 1ULL;
if (value > max )
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("int64 for macaddr out of range")));
retval = (macaddr *) palloc(sizeof(macaddr));
retval->a = (value >> (CHAR_BIT * 5)) & 0xFF;
retval->b = (value >> (CHAR_BIT * 4)) & 0xFF;
retval->c = (value >> (CHAR_BIT * 3)) & 0xFF;
retval->d = (value >> (CHAR_BIT * 2)) & 0xFF;
retval->e = (value >> (CHAR_BIT * 1)) & 0xFF;
retval->f = (value >> (CHAR_BIT * 0)) & 0xFF;
return (struct NullableDatum){MacaddrPGetDatum(retval), false};
}
else
{
macaddr8 * retval = (macaddr8 *) palloc(sizeof(macaddr8));
retval->a = (value >> (CHAR_BIT * 7)) & 0xFF;
retval->b = (value >> (CHAR_BIT * 6)) & 0xFF;
retval->c = (value >> (CHAR_BIT * 5)) & 0xFF;
retval->d = (value >> (CHAR_BIT * 4)) & 0xFF;
retval->e = (value >> (CHAR_BIT * 3)) & 0xFF;
retval->f = (value >> (CHAR_BIT * 2)) & 0xFF;
retval->g = (value >> (CHAR_BIT * 1)) & 0xFF;
retval->h = (value >> (CHAR_BIT * 0)) & 0xFF;
return (struct NullableDatum){Macaddr8PGetDatum(retval), false};
}
}
case SQLITE_FLOAT:
case SQLITE_BLOB:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
sqlite_value_to_pg_error();
else
pg_column_void_text_error();
break;
}
default:
{
sqlite_value_to_pg_error();
break;
}
}
break;
}
case VARBITOID:
case BITOID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
char * buffer = (char *) palloc0(SQLITE_FDW_BIT_DATATYPE_BUF_SIZE);
sqlite3_int64 sqlti = sqlite3_value_int64(val);
buffer = int642binstr(sqlti, buffer, SQLITE_FDW_BIT_DATATYPE_BUF_SIZE);
valstr = buffer;
elog(DEBUG4, "sqlite_fdw : BIT buf l=%ld v = %s", SQLITE_FDW_BIT_DATATYPE_BUF_SIZE, buffer);
break;
}
case SQLITE_FLOAT:
case SQLITE_BLOB:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:
{
if (value_byte_size_blob_or_utf8)
sqlite_value_to_pg_error();
else
pg_column_void_text_error();
break;
}
}
break;
}
case JSONOID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER:
case SQLITE_FLOAT:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE_BLOB:
{
ereport(ERROR, (errcode(ERRCODE_FDW_INVALID_DATA_TYPE),
errmsg("you should disable column_type = text for this column, because there is possible jsonb value")));
break;
}
case SQLITE3_TEXT:/* <-- proper and recommended SQLite affinity of value for pgtyp */
{
if (value_byte_size_blob_or_utf8)
{
valstr = sqlite_text_value_to_pg_db_encoding(val);
/* use valstr after switch */
break;
}
else
pg_column_void_text_error();
break;
}
default:
{
sqlite_value_to_pg_error();
break;
}
}
break;
}
case JSONBOID:
{
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER:
case SQLITE_FLOAT:
case SQLITE_BLOB:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE3_TEXT:/* <-- there is normalization function for text affinity only output */
{
if (value_byte_size_blob_or_utf8)
{
valstr = sqlite_text_value_to_pg_db_encoding(val);
/* use valstr after switch */
break;
}
else
pg_column_void_text_error();
break;
}
default:
{
sqlite_value_to_pg_error();
break;
}
}
break;
}
default:
{
/*
* PostGIS data types can be supported only by name
* This is very rare and not fast algorythm branch
*/
char *pg_dataTypeName = TypeNameToString(makeTypeNameFromOid(att->atttypid, att->atttypmod));
NameData pgColND = att->attname;
if (listed_datatype(pg_dataTypeName, postGisSpecificTypes))
{
elog(DEBUG4, "sqlite_fdw : is postGisSpecificType %s", pg_dataTypeName);
ereport(ERROR, (errcode(ERRCODE_FDW_INVALID_DATA_TYPE),
errmsg("This data type is PostGIS specific and is not supported by SpatiaLite or sqlite_fdw"),
errhint("Data type: \"%s\" in column \"%.*s\"", pg_dataTypeName, (int)sizeof(pgColND.data), pgColND.data)));
}
if (listed_datatype(pg_dataTypeName, postGisSQLiteCompatibleTypes))
{
elog(DEBUG4, "sqlite_fdw : is postGisSQLiteCompatibleType");
switch (sqlite_value_affinity)
{
case SQLITE_INTEGER:
case SQLITE_FLOAT:
default:
{
sqlite_value_to_pg_error();
break;
}
case SQLITE_BLOB: /* <-- proper and recommended SQLite affinity of value for pgtyp */
{
#ifdef SQLITE_FDW_GIS_ENABLE
unsigned const char * p_blob = sqlite3_value_blob(val);
valstr = SpatiaLiteAsPostGISgeom (
(struct blobOutput){(const char *)p_blob, value_byte_size_blob_or_utf8},
att
);
/* !!! use valstr later! Hex Input */
#else
Oid atttypid = att->atttypid;
int32 atttypmod = att->atttypmod;
/*
* If a domain has been declared as bytea, it can support PostGIS data type
*/
atttypid = getBaseTypeAndTypmod(atttypid, &atttypmod);
if (atttypid == BYTEAOID)
{
value_datum = (Datum) palloc0(value_byte_size_blob_or_utf8 + VARHDRSZ);
memcpy(VARDATA(value_datum), sqlite3_value_blob(val), value_byte_size_blob_or_utf8);
SET_VARSIZE(value_datum, value_byte_size_blob_or_utf8 + VARHDRSZ);
return (struct NullableDatum) {PointerGetDatum((const void *)value_datum), false};
}
else
ereport(ERROR, (errcode(ERRCODE_FDW_INVALID_DATA_TYPE),
errmsg("This PostGIS data type is supported by SpatiaLite, but FDW compiled without GIS data support"),
errhint("Data type: \"%s\" in column \"%.*s\"", pg_dataTypeName, (int)sizeof(pgColND.data), pgColND.data)));
#endif
break;
}
case SQLITE3_TEXT:
{
/* WKT data transport is not implemented */
sqlite_value_to_pg_error();
break;
}
}
}
else
{
/* common, not PostGIS case */
valstr = sqlite_text_value_to_pg_db_encoding(val);
}
}
break;
}
/* convert string value to appropriate type value */
value_datum = InputFunctionCall(&attinmeta->attinfuncs[attnum],
valstr,
attinmeta->attioparams[attnum],
attinmeta->atttypmods[attnum]);
return (struct NullableDatum){value_datum, false};
}
/*
* sqlite_datum_to_blob
* Common part of extracting and preparing PostgreSQL bytea data
* for SQLite binding as blob
*/
blobOutput
sqlite_datum_to_blob (Datum value)
{
int len;
char *dat = NULL;
char *result = DatumGetPointer(value);
if (VARATT_IS_1B(result))
{
len = VARSIZE_1B(result) - VARHDRSZ_SHORT;
dat = VARDATA_1B(result);
}
else
{
len = VARSIZE_4B(result) - VARHDRSZ;
dat = VARDATA_4B(result);
}
return (struct blobOutput){dat, len};
}
/*
* get_column_option_string
* By Oid of relation and varattno returns value of requested option
* of foreign table
*/
static char *
get_column_option_string(Oid relid, int varattno, char *optionname)
{
char *coloptionvalue = NULL;
List *options;
ListCell *lc;
options = GetForeignColumnOptions(relid, varattno);
foreach(lc, options)
{
DefElem *def = (DefElem *) lfirst(lc);
if (strcmp(def->defname, optionname) == 0)
{
coloptionvalue = defGetString(def);
break;
}
}
return coloptionvalue;
}
/*
* bind_sql_var
* Bind the values provided as DatumBind the values and nulls
* to modify the target table (INSERT/UPDATE)
*/
void
sqlite_bind_sql_var(Form_pg_attribute att, int attnum, Datum value, sqlite3_stmt * stmt, bool *isnull, Oid relid)
{
int ret = SQLITE_OK;
Oid type = att->atttypid;
int32 pgtypmod = att->atttypmod;
attnum++;
elog(DEBUG2, "sqlite_fdw : %s %d type=%u relid=%u typmod=%d ", __func__, attnum, type, relid, pgtypmod);
if (*isnull)
{
ret = sqlite3_bind_null(stmt, attnum);
if (ret != SQLITE_OK)
elog(ERROR, "sqlite3_bind_null failed with rc=%d", ret);
return;
}
switch (type)
{
/* popular first */
case TEXTOID:
case VARCHAROID:
case JSONOID:
case TIMESTAMPTZOID:
case DATEOID:
case NAMEOID:
case TIMEOID:
case TIMESTAMPOID:
case BPCHAROID:
{
/* Bind as text because SQLite does not have these types */
char *outputString = NULL;
Oid outputFunctionId = InvalidOid;
bool typeVarLength = false;
int pg_database_encoding = GetDatabaseEncoding(); /* very fast call, see PostgreSQL mbutils.c */
char *utf8_text_value = NULL;
getTypeOutputInfo(type, &outputFunctionId, &typeVarLength);
outputString = OidOutputFunctionCall(outputFunctionId, value);
if (pg_database_encoding == PG_UTF8)
utf8_text_value = outputString;
else
utf8_text_value = (char *) pg_do_encoding_conversion((unsigned char *) outputString, strlen(outputString), pg_database_encoding, PG_UTF8);
ret = sqlite3_bind_text(stmt, attnum, utf8_text_value, -1, SQLITE_TRANSIENT);
break;
}
case INT2OID:
{
int16 dat = DatumGetInt16(value);
ret = sqlite3_bind_int(stmt, attnum, dat);
break;
}
case INT4OID:
{
int32 dat = DatumGetInt32(value);
ret = sqlite3_bind_int(stmt, attnum, dat);
break;
}
case INT8OID:
{
int64 dat = DatumGetInt64(value);
ret = sqlite3_bind_int64(stmt, attnum, dat);
break;
}
case FLOAT4OID:
{
float4 dat = DatumGetFloat4(value);
ret = sqlite3_bind_double(stmt, attnum, (double) dat);
break;
}
case FLOAT8OID:
{
float8 dat = DatumGetFloat8(value);
ret = sqlite3_bind_double(stmt, attnum, dat);
break;
}
case NUMERICOID:
{
Datum value_datum = DirectFunctionCall1(numeric_float8, value);
float8 dat = DatumGetFloat8(value_datum);
ret = sqlite3_bind_double(stmt, attnum, dat);
break;
}
case BOOLOID:
{
int32 dat = DatumGetInt32(value);
ret = sqlite3_bind_int(stmt, attnum, dat);
break;
}
case BYTEAOID:
{
blobOutput b = sqlite_datum_to_blob(value);
ret = sqlite3_bind_blob(stmt, attnum, b.dat, b.len, SQLITE_TRANSIENT);
break;
}
case UUIDOID:
{
int sqlite_aff = SQLITE_NULL;
if (relid)
{
char * optv = get_column_option_string (relid, attnum, "column_type");
elog(DEBUG3, "sqlite_fdw : col type %s ", optv);
sqlite_aff = sqlite_affinity_code(optv);
}
if (sqlite_aff == SQLITE_BLOB)
{
unsigned char *dat = palloc0(UUID_LEN);
pg_uuid_t* pg_uuid = DatumGetUUIDP(value);
elog(DEBUG2, "sqlite_fdw : bind uuid as blob");
memcpy(dat, pg_uuid->data, UUID_LEN);
ret = sqlite3_bind_blob(stmt, attnum, dat, UUID_LEN, SQLITE_TRANSIENT);
}
else
{
/* uuid as text */
char *outputString = NULL;
Oid outputFunctionId = InvalidOid;
bool typeVarLength = false;
getTypeOutputInfo(type, &outputFunctionId, &typeVarLength);
outputString = OidOutputFunctionCall(outputFunctionId, value);
/* uuid text belongs to ASCII subset, no need to translate encoding */
ret = sqlite3_bind_text(stmt, attnum, outputString, -1, SQLITE_TRANSIENT);
}
break;
}
case MACADDROID:
case MACADDR8OID:
{
int sqlite_aff = SQLITE_INTEGER; /* default mac addr affinity */
if (relid)
{
char * optv = get_column_option_string (relid, attnum, "column_type");
elog(DEBUG3, "sqlite_fdw : column_type affinity %s ", optv);
sqlite_aff = sqlite_affinity_code(optv);
}
if (sqlite_aff == SQLITE3_TEXT)
{
char *outputString = NULL;
Oid outputFunctionId = InvalidOid;
bool typeVarLength = false;
elog(DEBUG2, "sqlite_fdw : bind mac as text");
getTypeOutputInfo(type, &outputFunctionId, &typeVarLength);
outputString = OidOutputFunctionCall(outputFunctionId, value);
/* MAC text belongs to ASCII subset, no need to translate encoding */
ret = sqlite3_bind_text(stmt, attnum, outputString, -1, SQLITE_TRANSIENT);
}
else if (sqlite_aff == SQLITE_BLOB)
{
if (type == MACADDROID)
{
unsigned char *mca = palloc0(MACADDR_LEN);
macaddr *m = DatumGetMacaddrP(value);
elog(DEBUG2, "sqlite_fdw : bind mac as blob");
mca[0] = m->a;
mca[1] = m->b;
mca[2] = m->c;
mca[3] = m->d;
mca[4] = m->e;
mca[5] = m->f;
ret = sqlite3_bind_blob(stmt, attnum, mca, MACADDR_LEN, SQLITE_TRANSIENT);
}
else
{
unsigned char *mca = palloc0(MACADDR8_LEN);
macaddr8 *m = DatumGetMacaddr8P(value);
elog(DEBUG2, "sqlite_fdw : bind mac8 as blob");
mca[0] = m->a;
mca[1] = m->b;
mca[2] = m->c;
mca[3] = m->d;
mca[4] = m->e;
mca[5] = m->f;
mca[6] = m->g;
mca[7] = m->h;
ret = sqlite3_bind_blob(stmt, attnum, mca, MACADDR8_LEN, SQLITE_TRANSIENT);
}
}
else /* default, INTEGER */
{
sqlite3_uint64 dat = 0;
if (type == MACADDROID)
{
macaddr *m = DatumGetMacaddrP(value);
dat = ((sqlite3_int64)(m->a) << (CHAR_BIT*5))
+ ((sqlite3_int64)(m->b) << (CHAR_BIT*4))
+ ((sqlite3_int64)(m->c) << (CHAR_BIT*3))
+ ((sqlite3_int64)(m->d) << (CHAR_BIT*2))
+ ((sqlite3_int64)(m->e) << (CHAR_BIT*1))
+ ((sqlite3_int64)(m->f) << (CHAR_BIT*0));
elog(DEBUG2, "sqlite_fdw : bind mac6 as integer %lld", dat);
}
else
{
macaddr8 *m = DatumGetMacaddr8P(value);
dat = ((sqlite3_int64)(m->a) << (CHAR_BIT*7))
+ ((sqlite3_int64)(m->b) << (CHAR_BIT*6))
+ ((sqlite3_int64)(m->c) << (CHAR_BIT*5))
+ ((sqlite3_int64)(m->d) << (CHAR_BIT*4))
+ ((sqlite3_int64)(m->e) << (CHAR_BIT*3))
+ ((sqlite3_int64)(m->f) << (CHAR_BIT*2))
+ ((sqlite3_int64)(m->g) << (CHAR_BIT*1))
+ ((sqlite3_int64)(m->h) << (CHAR_BIT*0));
elog(DEBUG2, "sqlite_fdw : bind mac8 as integer %lld", dat);
}
ret = sqlite3_bind_int64(stmt, attnum, dat);
}
break;
}
case VARBITOID:
case BITOID:
{
sqlite3_int64 dat;
char *outputString = NULL;
Oid outputFunctionId = InvalidOid;
bool typeVarLength = false;
getTypeOutputInfo(type, &outputFunctionId, &typeVarLength);
outputString = OidOutputFunctionCall(outputFunctionId, value);
elog(DEBUG4, "sqlite_fdw : BIT bind %s", outputString);
if (strlen(outputString) > SQLITE_FDW_BIT_DATATYPE_BUF_SIZE - 1 )
{
ereport(ERROR, (errcode(ERRCODE_FDW_INVALID_DATA_TYPE),
errmsg("SQLite FDW dosens't support very long bit/varbit data"),
errhint("bit length %ld, maximum %ld", strlen(outputString), SQLITE_FDW_BIT_DATATYPE_BUF_SIZE - 1)));
}
dat = binstr2int64(outputString);
ret = sqlite3_bind_int64(stmt, attnum, dat);
break;
}
case JSONBOID:
{
/* Bind as text because there are different JSONb presentation formats in PostgreSQL and SQLite */