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sqlite3_api_wrapper.cpp
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sqlite3_api_wrapper.cpp
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#include "sqlite3.h"
#include "duckdb.hpp"
#ifdef __cplusplus
extern "C" {
#endif
#include "postgres.h"
#include "access/htup_details.h"
#include "catalog/pg_type.h"
#include "utils/array.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"
#ifdef __cplusplus
}
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <string>
#include <chrono>
#include <cassert>
#include <climits>
#include <thread>
using namespace duckdb;
using namespace std;
#ifndef PreservedError
typedef duckdb::ErrorData PreservedError;
#endif
struct TryCast {
template <class SRC, class DST>
DUCKDB_API static inline bool Operation(SRC input, DST &result, bool strict = false) {
throw NotImplementedException("Unimplemented type for cast (%s -> %s)", GetTypeId<SRC>(), GetTypeId<DST>());
}
};
enum class SQLiteTypeValue : uint8_t { INTEGER = 1, FLOAT = 2, TEXT = 3, BLOB = 4, NULL_VALUE = 5 };
enum class ErrorType : uint16_t {
// error message types
UNSIGNED_EXTENSION = 0,
INVALIDATED_TRANSACTION = 1,
INVALIDATED_DATABASE = 2,
// this should always be the last value
ERROR_COUNT,
INVALID = 65535,
};
struct sqlite3 {
std::unique_ptr<duckdb::DuckDB> db;
std::unique_ptr<duckdb::Connection> con;
PreservedError last_error;
int64_t last_changes = 0;
int64_t total_changes = 0;
int errCode; /* Most recent error code (SQLITE_*) */
};
struct sqlite3_value {
union MemValue {
double r; /* Real value used when MEM_Real is set in flags */
int64_t i; /* Integer value used when MEM_Int is set in flags */
// int nZero; /* Extra zero bytes when MEM_Zero and MEM_Blob set */
} u;
SQLiteTypeValue type;
std::string str;
sqlite3 *db; /* The associated database connection */
};
struct FuncDef {
// i8 nArg; /* Number of arguments. -1 means unlimited */
// u32 funcFlags; /* Some combination of SQLITE_FUNC_* */
void *pUserData; /* User data parameter */
// FuncDef *pNext; /* Next function with same name */
// void (*xSFunc)(sqlite3_context*,int,sqlite3_value**); /* func or agg-step */
// void (*xFinalize)(sqlite3_context*); /* Agg finalizer */
// void (*xValue)(sqlite3_context*); /* Current agg value */
// void (*xInverse)(sqlite3_context*,int,sqlite3_value**); /* inverse agg-step */
// const char *zName; /* SQL name of the function. */
// union {
// FuncDef *pHash; /* Next with a different name but the same hash */
// FuncDestructor *pDestructor; /* Reference counted destructor function */
// } u;
};
struct sqlite3_context {
sqlite3_value result; // Mem *pOut; /* The return value is stored here */
FuncDef pFunc; /* Pointer to function information */
// Mem *pMem; /* Memory cell used to store aggregate context */
// Vdbe *pVdbe; /* The VM that owns this context */
// int iOp; /* Instruction number of OP_Function */
int isError; /* Error code returned by the function. */
// u8 skipFlag; /* Skip accumulator loading if true */
// u8 argc; /* Number of arguments */
// sqlite3_value *argv[1]; /* Argument set */
};
static char *sqlite3_strdup(const char *str);
struct sqlite3_string_buffer {
//! String data
duckdb::unsafe_unique_array<char> data;
//! String length
int data_len;
};
struct sqlite3_stmt {
//! The DB object that this statement belongs to
sqlite3 *db;
//! The query string
string query_string;
//! The prepared statement object, if successfully prepared
duckdb::unique_ptr<PreparedStatement> prepared;
//! The result object, if successfully executed
duckdb::unique_ptr<QueryResult> result;
//! The current chunk that we are iterating over
duckdb::unique_ptr<DataChunk> current_chunk;
//! The current row into the current chunk that we are iterating over
int64_t current_row;
//! Bound values, used for binding to the prepared statement
duckdb::vector<duckdb::Value> bound_values;
//! Names of the prepared parameters
duckdb::vector<string> bound_names;
//! The current column values converted to string, used and filled by sqlite3_column_text
duckdb::unique_ptr<sqlite3_string_buffer[]> current_text;
};
void sqlite3_randomness(int N, void *pBuf) {
static bool init = false;
if (!init) {
srand(time(NULL));
init = true;
}
unsigned char *zBuf = (unsigned char *)pBuf;
while (N--) {
unsigned char nextByte = rand() % 255;
zBuf[N] = nextByte;
}
}
int sqlite3_open(const char *filename, /* Database filename (UTF-8) */
sqlite3 **ppDb /* OUT: SQLite db handle */
) {
return sqlite3_open_v2(filename, ppDb, 0, NULL);
}
int sqlite3_open_v2(const char *filename, /* Database filename (UTF-8) */
sqlite3 **ppDb, /* OUT: SQLite db handle */
int flags, /* Flags */
const char *zVfs /* Name of VFS module to use */
) {
return sqlite3_open_v3(filename, ppDb, flags, zVfs, NULL);
}
int sqlite3_open_v3(const char *filename, /* Database filename (UTF-8) */
sqlite3 **ppDb, /* OUT: SQLite db handle */
int flags, /* Flags */
const char *zVfs, /* Name of VFS module to use */
const char *temp_dir /* Temp directory to use */
) {
if (filename && strcmp(filename, ":memory:") == 0) {
filename = NULL;
}
*ppDb = nullptr;
if (zVfs) { /* unsupported so if set we complain */
return SQLITE_ERROR;
}
int rc = SQLITE_OK;
sqlite3 *pDb = nullptr;
try {
pDb = new sqlite3();
DBConfig config;
config.options.access_mode = AccessMode::AUTOMATIC;
if (flags & SQLITE_OPEN_READONLY) {
config.options.access_mode = AccessMode::READ_ONLY;
}
if (flags & DUCKDB_UNSIGNED_EXTENSIONS) {
config.options.allow_unsigned_extensions = true;
}
if (temp_dir) {
config.options.temporary_directory = string(temp_dir);
}
//TODO
// config.error_manager->AddCustomError(
// ErrorType::UNSIGNED_EXTENSION,
// "Extension \"%s\" could not be loaded because its signature is either missing or invalid and unsigned "
// "extensions are disabled by configuration.\nStart the shell with the -unsigned parameter to allow this "
// "(e.g. duckdb -unsigned).");
pDb->db = make_uniq<DuckDB>(filename, &config);
// pDb->db->LoadExtension<SQLAutoCompleteExtension>();
pDb->con = make_uniq<Connection>(*pDb->db);
} catch (const Exception &ex) {
if (pDb) {
pDb->last_error = PreservedError(ex);
pDb->errCode = SQLITE_ERROR;
}
rc = SQLITE_ERROR;
} catch (std::exception &ex) {
if (pDb) {
pDb->last_error = PreservedError(ex);
pDb->errCode = SQLITE_ERROR;
}
rc = SQLITE_ERROR;
}
*ppDb = pDb;
return rc;
}
int sqlite3_close(sqlite3 *db) {
if (db) {
delete db;
}
return SQLITE_OK;
}
int sqlite3_shutdown(void) {
return SQLITE_OK;
}
/* In SQLite this function compiles the query into VDBE bytecode,
* in the implementation it currently executes the query */
// TODO: prepare the statement instead of executing right away
int sqlite3_prepare_v2(sqlite3 *db, /* Database handle */
const char *zSql, /* SQL statement, UTF-8 encoded */
int nByte, /* Maximum length of zSql in bytes. */
sqlite3_stmt **ppStmt, /* OUT: Statement handle */
const char **pzTail /* OUT: Pointer to unused portion of zSql */
) {
if (!db || !ppStmt || !zSql) {
return SQLITE_MISUSE;
}
*ppStmt = nullptr;
duckdb::vector<duckdb::unique_ptr<SQLStatement>> statements;
const string query = nByte < 0 ? zSql : string(zSql, nByte);
if (pzTail) {
*pzTail = zSql + query.size();
}
try {
statements = db->con->context->ParseStatements(query);
// Parser parser(db->con->context->GetParserOptions());
// parser.ParseQuery(query);
// if (parser.statements.size() == 0) {
// return SQLITE_OK;
// }
if (statements.size() == 0) {
return SQLITE_OK;
}
// extract the remainder
// idx_t next_location = parser.statements[0]->stmt_location + parser.statements[0]->stmt_length;
idx_t next_location = statements[0]->stmt_location + statements[0]->stmt_length;
bool set_remainder = next_location < query.size();
// extract the first statement
duckdb::vector<duckdb::unique_ptr<SQLStatement>> _statements;
// statements.push_back(std::move(parser.statements[0]));
_statements.push_back(std::move(statements[0]));
db->con->context->HandlePragmaStatements(_statements);
// if there are multiple statements here, we are dealing with an import database statement
// we directly execute all statements besides the final one
for (idx_t i = 0; i + 1 < _statements.size(); i++) {
auto res = db->con->Query(std::move(_statements[i]));
if (res->HasError()) {
db->last_error = res->GetErrorObject();
return SQLITE_ERROR;
}
}
// now prepare the query
auto prepared = db->con->Prepare(std::move(_statements.back()));
if (prepared->HasError()) {
// failed to prepare: set the error message
db->last_error = prepared->error;
return SQLITE_ERROR;
}
// create the statement entry
duckdb::unique_ptr<sqlite3_stmt> stmt = make_uniq<sqlite3_stmt>();
stmt->db = db;
stmt->query_string = query;
stmt->prepared = std::move(prepared);
stmt->current_row = -1;
#if (DUCKDB_MAJOR_VERSION >= 1) && (DUCKDB_MINOR_VERSION >= 1)
for (idx_t i = 0; i < stmt->prepared->named_param_map.size(); i++) {
#else
for (idx_t i = 0; i < stmt->prepared->n_param; i++) {
#endif
stmt->bound_names.push_back("$" + to_string(i + 1));
stmt->bound_values.push_back(duckdb::Value());
}
// extract the remainder of the query and assign it to the pzTail
if (pzTail && set_remainder) {
*pzTail = zSql + next_location + 1;
}
*ppStmt = stmt.release();
return SQLITE_OK;
} catch (const Exception &ex) {
db->last_error = PreservedError(ex);
return SQLITE_ERROR;
} catch (std::exception &ex) {
db->last_error = PreservedError(ex);
return SQLITE_ERROR;
}
}
// char *sqlite3_print_duckbox(sqlite3_stmt *pStmt, size_t max_rows, char *null_value) {
// if (!pStmt) {
// return nullptr;
// }
// if (!pStmt->prepared) {
// pStmt->db->last_error = PreservedError("Attempting sqlite3_step() on a non-successfully prepared statement");
// return nullptr;
// }
// if (pStmt->result) {
// pStmt->db->last_error = PreservedError("Statement has already been executed");
// return nullptr;
// }
// pStmt->result = pStmt->prepared->Execute(pStmt->bound_values, false);
// if (pStmt->result->HasError()) {
// // error in execute: clear prepared statement
// pStmt->db->last_error = pStmt->result->GetErrorObject();
// pStmt->prepared = nullptr;
// return nullptr;
// }
// auto &materialized = (MaterializedQueryResult &)*pStmt->result;
// auto properties = pStmt->prepared->GetStatementProperties();
// if (properties.return_type == StatementReturnType::CHANGED_ROWS && materialized.RowCount() > 0) {
// // update total changes
// auto row_changes = materialized.Collection().GetRows().GetValue(0, 0);
// if (!row_changes.IsNull() && row_changes.DefaultTryCastAs(LogicalType::BIGINT)) {
// pStmt->db->last_changes = row_changes.GetValue<int64_t>();
// pStmt->db->total_changes += row_changes.GetValue<int64_t>();
// }
// }
// if (properties.return_type != StatementReturnType::QUERY_RESULT) {
// // only SELECT statements return results
// return nullptr;
// }
// BoxRendererConfig config;
// if (max_rows != 0) {
// config.max_rows = max_rows;
// }
// if (null_value) {
// config.null_value = null_value;
// }
// BoxRenderer renderer(config);
// auto result_rendering =
// renderer.ToString(*pStmt->db->con->context, pStmt->result->names, materialized.Collection());
// return sqlite3_strdup(result_rendering.c_str());
// }
/* Prepare the next result to be retrieved */
int sqlite3_step(sqlite3_stmt *pStmt) {
if (!pStmt) {
return SQLITE_MISUSE;
}
if (!pStmt->prepared) {
pStmt->db->last_error = PreservedError("Attempting sqlite3_step() on a non-successfully prepared statement");
return SQLITE_ERROR;
}
pStmt->current_text = nullptr;
if (!pStmt->result) {
// no result yet! call Execute()
pStmt->result = pStmt->prepared->Execute(pStmt->bound_values, true);
if (pStmt->result->HasError()) {
// error in execute: clear prepared statement
pStmt->db->last_error = pStmt->result->GetErrorObject();
pStmt->prepared = nullptr;
return SQLITE_ERROR;
}
// fetch a chunk
if (!pStmt->result->TryFetch(pStmt->current_chunk, pStmt->db->last_error)) {
pStmt->prepared = nullptr;
return SQLITE_ERROR;
}
pStmt->current_row = -1;
auto properties = pStmt->prepared->GetStatementProperties();
if (properties.return_type == StatementReturnType::CHANGED_ROWS && pStmt->current_chunk &&
pStmt->current_chunk->size() > 0) {
// update total changes
auto row_changes = pStmt->current_chunk->GetValue(0, 0);
if (!row_changes.IsNull() && row_changes.DefaultTryCastAs(LogicalType::BIGINT)) {
pStmt->db->last_changes = row_changes.GetValue<int64_t>();
pStmt->db->total_changes += row_changes.GetValue<int64_t>();
}
}
if (properties.return_type != StatementReturnType::QUERY_RESULT) {
// only SELECT statements return results
sqlite3_reset(pStmt);
}
}
if (!pStmt->current_chunk || pStmt->current_chunk->size() == 0) {
return SQLITE_DONE;
}
pStmt->current_row++;
if (pStmt->current_row >= (int32_t)pStmt->current_chunk->size()) {
// have to fetch again!
pStmt->current_row = 0;
if (!pStmt->result->TryFetch(pStmt->current_chunk, pStmt->db->last_error)) {
pStmt->prepared = nullptr;
return SQLITE_ERROR;
}
if (!pStmt->current_chunk || pStmt->current_chunk->size() == 0) {
sqlite3_reset(pStmt);
return SQLITE_DONE;
}
}
return SQLITE_ROW;
}
/* Execute multiple semicolon separated SQL statements
* and execute the passed callback for each produced result,
* largely copied from the original sqlite3 source */
int sqlite3_exec(sqlite3 *db, /* The database on which the SQL executes */
const char *zSql, /* The SQL to be executed */
sqlite3_callback xCallback, /* Invoke this callback routine */
void *pArg, /* First argument to xCallback() */
char **pzErrMsg /* Write error messages here */
) {
int rc = SQLITE_OK; /* Return code */
const char *zLeftover; /* Tail of unprocessed SQL */
sqlite3_stmt *pStmt = nullptr; /* The current SQL statement */
char **azCols = nullptr; /* Names of result columns */
char **azVals = nullptr; /* Result values */
if (zSql == nullptr) {
zSql = "";
}
while (rc == SQLITE_OK && zSql[0]) {
int nCol;
pStmt = nullptr;
rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zLeftover);
if (rc != SQLITE_OK) {
if (pzErrMsg) {
auto errmsg = sqlite3_errmsg(db);
*pzErrMsg = errmsg ? sqlite3_strdup(errmsg) : nullptr;
}
continue;
}
if (!pStmt) {
/* this happens for a comment or white-space */
zSql = zLeftover;
continue;
}
nCol = sqlite3_column_count(pStmt);
azCols = (char **)malloc(nCol * sizeof(const char *));
azVals = (char **)malloc(nCol * sizeof(const char *));
if (!azCols || !azVals) {
goto exec_out;
}
for (int i = 0; i < nCol; i++) {
azCols[i] = (char *)sqlite3_column_name(pStmt, i);
}
while (true) {
rc = sqlite3_step(pStmt);
/* Invoke the callback function if required */
if (xCallback && rc == SQLITE_ROW) {
for (int i = 0; i < nCol; i++) {
azVals[i] = (char *)sqlite3_column_text(pStmt, i);
if (!azVals[i] && sqlite3_column_type(pStmt, i) != SQLITE_NULL) {
fprintf(stderr, "sqlite3_exec: out of memory.\n");
goto exec_out;
}
}
if (xCallback(pArg, nCol, azVals, azCols)) {
/* EVIDENCE-OF: R-38229-40159 If the callback function to
** sqlite3_exec() returns non-zero, then sqlite3_exec() will
** return SQLITE_ABORT. */
rc = SQLITE_ABORT;
sqlite3_finalize(pStmt);
pStmt = 0;
fprintf(stderr, "sqlite3_exec: callback returned non-zero. "
"Aborting.\n");
goto exec_out;
}
}
if (rc == SQLITE_DONE) {
rc = sqlite3_finalize(pStmt);
pStmt = nullptr;
zSql = zLeftover;
while (isspace(zSql[0]))
zSql++;
break;
} else if (rc != SQLITE_ROW) {
// error
if (pzErrMsg) {
auto errmsg = sqlite3_errmsg(db);
*pzErrMsg = errmsg ? sqlite3_strdup(errmsg) : nullptr;
}
goto exec_out;
}
}
sqlite3_free(azCols);
sqlite3_free(azVals);
azCols = nullptr;
azVals = nullptr;
}
exec_out:
if (pStmt) {
sqlite3_finalize(pStmt);
}
sqlite3_free(azCols);
sqlite3_free(azVals);
if (rc != SQLITE_OK && pzErrMsg && !*pzErrMsg) {
// error but no error message set
*pzErrMsg = sqlite3_strdup("Unknown error in DuckDB!");
}
return rc;
}
/* Return the text of the SQL that was used to prepare the statement */
const char *sqlite3_sql(sqlite3_stmt *pStmt) {
return pStmt->query_string.c_str();
}
int sqlite3_column_count(sqlite3_stmt *pStmt) {
if (!pStmt || !pStmt->prepared) {
return 0;
}
return (int)pStmt->prepared->ColumnCount();
}
////////////////////////////
// sqlite3_column //
////////////////////////////
int sqlite3_column_type(const LogicalType& column_type) {
switch (column_type.id()) {
case LogicalTypeId::BOOLEAN:
case LogicalTypeId::TINYINT:
case LogicalTypeId::SMALLINT:
case LogicalTypeId::INTEGER:
case LogicalTypeId::BIGINT: /* TODO: Maybe blob? */
return SQLITE_INTEGER;
case LogicalTypeId::FLOAT:
case LogicalTypeId::DOUBLE:
case LogicalTypeId::DECIMAL:
return SQLITE_FLOAT;
case LogicalTypeId::DATE:
case LogicalTypeId::TIME:
case LogicalTypeId::TIMESTAMP:
case LogicalTypeId::TIMESTAMP_SEC:
case LogicalTypeId::TIMESTAMP_MS:
case LogicalTypeId::TIMESTAMP_NS:
case LogicalTypeId::VARCHAR:
case LogicalTypeId::STRUCT:
case LogicalTypeId::MAP:
return SQLITE_TEXT;
case LogicalTypeId::BLOB:
return SQLITE_BLOB;
case LogicalTypeId::LIST:
{
auto child_type = ListType::GetChildType(column_type);
return sqlite3_column_type(child_type);
}
default:
// TODO(wangfenjin): agg function don't have type?
return SQLITE_TEXT;
}
return 0;
}
int sqlite3_column_type(sqlite3_stmt *pStmt, int iCol) {
if (!pStmt || !pStmt->result || !pStmt->current_chunk) {
return 0;
}
if (iCol < 0 || iCol >= (int)pStmt->result->types.size()) {
return 0;
}
if (FlatVector::IsNull(pStmt->current_chunk->data[iCol], pStmt->current_row)) {
return SQLITE_NULL;
}
auto column_type = pStmt->result->types[iCol];
return sqlite3_column_type(column_type);
}
const char *sqlite3_column_name(sqlite3_stmt *pStmt, int N) {
if (!pStmt || !pStmt->prepared) {
return nullptr;
}
return pStmt->prepared->GetNames()[N].c_str();
}
static bool sqlite3_column_get_value(sqlite3_stmt *pStmt, int iCol, duckdb::Value &val) {
if (!pStmt || !pStmt->result || !pStmt->current_chunk) {
return false;
}
if (iCol < 0 || iCol >= (int)pStmt->result->types.size()) {
return false;
}
if (FlatVector::IsNull(pStmt->current_chunk->data[iCol], pStmt->current_row)) {
return false;
}
val = pStmt->current_chunk->data[iCol].GetValue(pStmt->current_row);
return true;
}
static bool sqlite3_column_has_value(sqlite3_stmt *pStmt, int iCol, LogicalType target_type, duckdb::Value &val) {
try {
if (sqlite3_column_get_value(pStmt, iCol, val)) {
val = val.CastAs(*pStmt->db->con->context, target_type);
return true;
}
} catch (...) {
}
return false;
}
double sqlite3_column_double(sqlite3_stmt *stmt, int iCol) {
duckdb::Value val;
if (!sqlite3_column_has_value(stmt, iCol, LogicalType::DOUBLE, val)) {
return 0;
}
return DoubleValue::Get(val);
}
int sqlite3_column_int(sqlite3_stmt *stmt, int iCol) {
duckdb::Value val;
if (!sqlite3_column_has_value(stmt, iCol, LogicalType::INTEGER, val)) {
return 0;
}
return IntegerValue::Get(val);
}
sqlite3_int64 sqlite3_column_int64(sqlite3_stmt *stmt, int iCol) {
duckdb::Value val;
if (!sqlite3_column_has_value(stmt, iCol, LogicalType::BIGINT, val)) {
return 0;
}
return BigIntValue::Get(val);
}
const unsigned char *sqlite3_column_text(sqlite3_stmt *pStmt, int iCol) {
duckdb::Value val;
if (!sqlite3_column_has_value(pStmt, iCol, LogicalType::VARCHAR, val)) {
return nullptr;
}
try {
if (!pStmt->current_text) {
pStmt->current_text =
duckdb::unique_ptr<sqlite3_string_buffer[]>(new sqlite3_string_buffer[pStmt->result->types.size()]);
}
auto &entry = pStmt->current_text[iCol];
if (!entry.data) {
// not initialized yet, convert the value and initialize it
auto &str_val = StringValue::Get(val);
entry.data = duckdb::make_unsafe_uniq_array<char>(str_val.size() + 1);
memcpy(entry.data.get(), str_val.c_str(), str_val.size() + 1);
entry.data_len = str_val.length();
}
return (const unsigned char *)entry.data.get();
} catch (...) {
// memory error!
return nullptr;
}
}
const void *sqlite3_column_blob(sqlite3_stmt *pStmt, int iCol) {
duckdb::Value val;
if (!sqlite3_column_has_value(pStmt, iCol, LogicalType::BLOB, val)) {
return nullptr;
}
try {
if (!pStmt->current_text) {
pStmt->current_text =
duckdb::unique_ptr<sqlite3_string_buffer[]>(new sqlite3_string_buffer[pStmt->result->types.size()]);
}
auto &entry = pStmt->current_text[iCol];
if (!entry.data) {
// not initialized yet, convert the value and initialize it
auto &str_val = StringValue::Get(val);
entry.data = duckdb::make_unsafe_uniq_array<char>(str_val.size() + 1);
memcpy(entry.data.get(), str_val.c_str(), str_val.size() + 1);
entry.data_len = str_val.length();
}
return (const unsigned char *)entry.data.get();
} catch (...) {
// memory error!
return nullptr;
}
}
static bool duckdb_value_as_datum(const duckdb::Value &val, Oid pgType, Datum *value) {
const LogicalType &column_type = val.type();
switch (column_type.id()) {
case LogicalTypeId::BOOLEAN:
{
bool v = val.GetValue<bool>();
*value = BoolGetDatum(v);
return true;
}
case LogicalTypeId::TINYINT:
{
int8_t v = val.GetValue<int8_t>();
*value = Int8GetDatum(v);
return true;
}
case LogicalTypeId::SMALLINT:
{
int16_t v = val.GetValue<int16_t>();
*value = Int16GetDatum(v);
return true;
}
case LogicalTypeId::INTEGER:
{
int32_t v = val.GetValue<int32_t>();
*value = Int32GetDatum(v);
return true;
}
case LogicalTypeId::BIGINT:
{
int64_t v = val.GetValue<int64_t>();
*value = Int64GetDatum(v);
return true;
}
case LogicalTypeId::FLOAT:
{
float4 v = val.GetValue<float4>();
*value = Float4GetDatum(v);
return true;
}
case LogicalTypeId::DOUBLE:
{
float8 v = val.GetValue<float8>();
*value = Float8GetDatum(v);
return true;
}
case LogicalTypeId::DECIMAL:
case LogicalTypeId::DATE:
case LogicalTypeId::TIME:
case LogicalTypeId::TIMESTAMP:
case LogicalTypeId::TIMESTAMP_SEC:
case LogicalTypeId::TIMESTAMP_MS:
case LogicalTypeId::TIMESTAMP_NS:
case LogicalTypeId::TIME_TZ:
case LogicalTypeId::TIMESTAMP_TZ:
{
HeapTuple tuple = SearchSysCache1(TYPEOID, ObjectIdGetDatum(pgType));
if (HeapTupleIsValid(tuple)) {
regproc typeinput = ((Form_pg_type) GETSTRUCT(tuple))->typinput;
int typemod = ((Form_pg_type) GETSTRUCT(tuple))->typtypmod;
ReleaseSysCache(tuple);
std::string value_s = val.ToString();
Datum temp_ = CStringGetDatum(value_s.c_str());
*value =
OidFunctionCall3(typeinput, temp_, ObjectIdGetDatum(InvalidOid), Int32GetDatum(typemod));
return true;
}
break;
}
case LogicalTypeId::LIST:
{
Oid element_type = get_element_type(pgType);
ArrayBuildState *astate = NULL;
astate = initArrayResult(element_type, CurrentMemoryContext, false);
const auto &children = ListValue::GetChildren(val);
for (const auto &child : children) {
Datum child_value = 0;
if (duckdb_value_as_datum(child, element_type, &child_value)) {
astate = accumArrayResult(astate,
child_value,
false,
element_type,
CurrentMemoryContext);
}
}
Datum array_result = makeArrayResult(astate, CurrentMemoryContext);
*value = array_result;
return true;
}
case LogicalTypeId::VARCHAR:
default:
{
std::string value_s = val.ToString();
char *text_ptr = (char *) palloc(value_s.size() + VARHDRSZ);
SET_VARSIZE(text_ptr, value_s.size() + VARHDRSZ);
memcpy(VARDATA(text_ptr), value_s.c_str(), value_s.size());
*value = CStringGetDatum(text_ptr);
return true;
}
}
return false;
}
bool sqlite3_column_value_datum(sqlite3_stmt *pStmt, int iCol, Oid pgType, Datum *value) {
duckdb::Value val;
if (sqlite3_column_get_value(pStmt, iCol, val) && duckdb_value_as_datum(val, pgType, value)) {
return true;
}
return false;
}
////////////////////////////
// sqlite3_bind //
////////////////////////////
int sqlite3_bind_parameter_count(sqlite3_stmt *stmt) {
if (!stmt) {
return 0;
}
#if (DUCKDB_MAJOR_VERSION >= 1) && (DUCKDB_MINOR_VERSION >= 1)
return stmt->prepared->named_param_map.size();
#else
return stmt->prepared->n_param;
#endif
}
const char *sqlite3_bind_parameter_name(sqlite3_stmt *stmt, int idx) {
if (!stmt) {
return nullptr;
}
#if (DUCKDB_MAJOR_VERSION >= 1) && (DUCKDB_MINOR_VERSION >= 1)
if (idx < 1 || idx > (int)stmt->prepared->named_param_map.size()) {
#else
if (idx < 1 || idx > (int)stmt->prepared->n_param) {
#endif
return nullptr;
}
return stmt->bound_names[idx - 1].c_str();
}
int sqlite3_bind_parameter_index(sqlite3_stmt *stmt, const char *zName) {
if (!stmt || !zName) {
return 0;
}
for (idx_t i = 0; i < stmt->bound_names.size(); i++) {
if (stmt->bound_names[i] == string(zName)) {
return i + 1;
}
}
return 0;
}
int sqlite3_internal_bind_value(sqlite3_stmt *stmt, int idx, duckdb::Value value) {
if (!stmt || !stmt->prepared || stmt->result) {
return SQLITE_MISUSE;
}
#if (DUCKDB_MAJOR_VERSION >= 1) && (DUCKDB_MINOR_VERSION >= 1)
if (idx < 1 || idx > (int)stmt->prepared->named_param_map.size()) {
#else
if (idx < 1 || idx > (int)stmt->prepared->n_param) {
#endif
return SQLITE_RANGE;
}
stmt->bound_values[idx - 1] = value;
return SQLITE_OK;
}
int sqlite3_bind_int(sqlite3_stmt *stmt, int idx, int val) {
return sqlite3_internal_bind_value(stmt, idx, duckdb::Value::INTEGER(val));
}
int sqlite3_bind_int64(sqlite3_stmt *stmt, int idx, sqlite3_int64 val) {
return sqlite3_internal_bind_value(stmt, idx, duckdb::Value::BIGINT(val));
}
int sqlite3_bind_double(sqlite3_stmt *stmt, int idx, double val) {
return sqlite3_internal_bind_value(stmt, idx, duckdb::Value::DOUBLE(val));
}
int sqlite3_bind_null(sqlite3_stmt *stmt, int idx) {
return sqlite3_internal_bind_value(stmt, idx, duckdb::Value());
}
SQLITE_API int sqlite3_bind_value(sqlite3_stmt *, int, const sqlite3_value *) {
fprintf(stderr, "sqlite3_bind_value: unsupported.\n");
return SQLITE_ERROR;
}
int sqlite3_bind_text(sqlite3_stmt *stmt, int idx, const char *val, int length, void (*free_func)(void *)) {
if (!val) {
return SQLITE_MISUSE;
}
string value;
if (length < 0) {
value = string(val);
} else {
value = string(val, length);
}
if (free_func && ((ptrdiff_t)free_func) != -1) {
free_func((void *)val);
val = nullptr;
}
try {
return sqlite3_internal_bind_value(stmt, idx, duckdb::Value(value));
} catch (std::exception &ex) {
return SQLITE_ERROR;
}
}
int sqlite3_bind_blob(sqlite3_stmt *stmt, int idx, const void *val, int length, void (*free_func)(void *)) {
if (!val) {
return SQLITE_MISUSE;
}
duckdb::Value blob;
if (length < 0) {
blob = duckdb::Value::BLOB(string((const char *)val));
} else {
blob = duckdb::Value::BLOB((const_data_ptr_t)val, length);
}
if (free_func && ((ptrdiff_t)free_func) != -1) {
free_func((void *)val);
val = nullptr;
}
try {
return sqlite3_internal_bind_value(stmt, idx, blob);
} catch (std::exception &ex) {
return SQLITE_ERROR;
}
}
SQLITE_API int sqlite3_bind_zeroblob(sqlite3_stmt *stmt, int idx, int length) {
fprintf(stderr, "sqlite3_bind_zeroblob: unsupported.\n");
return SQLITE_ERROR;
}
int sqlite3_clear_bindings(sqlite3_stmt *stmt) {
if (!stmt) {
return SQLITE_MISUSE;
}
return SQLITE_OK;
}
int sqlite3_initialize(void) {
return SQLITE_OK;
}
int sqlite3_finalize(sqlite3_stmt *pStmt) {
if (pStmt) {
if (pStmt->result && pStmt->result->HasError()) {
pStmt->db->last_error = pStmt->result->GetErrorObject();
delete pStmt;
return SQLITE_ERROR;
}
delete pStmt;
}
return SQLITE_OK;
}
/*
** Some systems have stricmp(). Others have strcasecmp(). Because
** there is no consistency, we will define our own.
**
** IMPLEMENTATION-OF: R-30243-02494 The sqlite3_stricmp() and
** sqlite3_strnicmp() APIs allow applications and extensions to compare
** the contents of two buffers containing UTF-8 strings in a
** case-independent fashion, using the same definition of "case
** independence" that SQLite uses internally when comparing identifiers.
*/
const unsigned char sqlite3UpperToLower[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 97,
98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
120, 121, 122, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131,
132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153,
154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197,
198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219,
220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241,
242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255};
int sqlite3StrICmp(const char *zLeft, const char *zRight) {
unsigned char *a, *b;
int c;
a = (unsigned char *)zLeft;
b = (unsigned char *)zRight;
for (;;) {
c = (int)sqlite3UpperToLower[*a] - (int)sqlite3UpperToLower[*b];
if (c || *a == 0)
break;