summaryrefslogtreecommitdiffstats
path: root/contrib/clickhouse/src/TableFunctions/TableFunctionSQLite.cpp
diff options
context:
space:
mode:
authorvitalyisaev <[email protected]>2023-11-14 09:58:56 +0300
committervitalyisaev <[email protected]>2023-11-14 10:20:20 +0300
commitc2b2dfd9827a400a8495e172a56343462e3ceb82 (patch)
treecd4e4f597d01bede4c82dffeb2d780d0a9046bd0 /contrib/clickhouse/src/TableFunctions/TableFunctionSQLite.cpp
parentd4ae8f119e67808cb0cf776ba6e0cf95296f2df7 (diff)
YQ Connector: move tests from yql to ydb (OSS)
Перенос папки с тестами на Коннектор из папки yql в папку ydb (синхронизируется с github).
Diffstat (limited to 'contrib/clickhouse/src/TableFunctions/TableFunctionSQLite.cpp')
-rw-r--r--contrib/clickhouse/src/TableFunctions/TableFunctionSQLite.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/contrib/clickhouse/src/TableFunctions/TableFunctionSQLite.cpp b/contrib/clickhouse/src/TableFunctions/TableFunctionSQLite.cpp
new file mode 100644
index 00000000000..36525ef9226
--- /dev/null
+++ b/contrib/clickhouse/src/TableFunctions/TableFunctionSQLite.cpp
@@ -0,0 +1,80 @@
+#include <TableFunctions/TableFunctionSQLite.h>
+
+#if USE_SQLITE
+
+#include <Common/Exception.h>
+#include <Common/quoteString.h>
+
+#error #include <Databases/SQLite/SQLiteUtils.h>
+#include "registerTableFunctions.h"
+
+#include <Interpreters/evaluateConstantExpression.h>
+
+#include <Parsers/ASTFunction.h>
+
+#include <TableFunctions/ITableFunction.h>
+#include <TableFunctions/TableFunctionFactory.h>
+
+#include <Storages/checkAndGetLiteralArgument.h>
+
+
+namespace DB
+{
+
+namespace ErrorCodes
+{
+ extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
+ extern const int BAD_ARGUMENTS;
+}
+
+
+StoragePtr TableFunctionSQLite::executeImpl(const ASTPtr & /*ast_function*/,
+ ContextPtr context, const String & table_name, ColumnsDescription cached_columns, bool /*is_insert_query*/) const
+{
+ auto storage = std::make_shared<StorageSQLite>(StorageID(getDatabaseName(), table_name),
+ sqlite_db,
+ database_path,
+ remote_table_name,
+ cached_columns, ConstraintsDescription{}, context);
+
+ storage->startup();
+ return storage;
+}
+
+
+ColumnsDescription TableFunctionSQLite::getActualTableStructure(ContextPtr /* context */, bool /*is_insert_query*/) const
+{
+ return StorageSQLite::getTableStructureFromData(sqlite_db, remote_table_name);
+}
+
+
+void TableFunctionSQLite::parseArguments(const ASTPtr & ast_function, ContextPtr context)
+{
+ const auto & func_args = ast_function->as<ASTFunction &>();
+
+ if (!func_args.arguments)
+ throw Exception(ErrorCodes::BAD_ARGUMENTS, "Table function 'sqlite' must have arguments.");
+
+ ASTs & args = func_args.arguments->children;
+
+ if (args.size() != 2)
+ throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH, "SQLite database requires 2 arguments: database path, table name");
+
+ for (auto & arg : args)
+ arg = evaluateConstantExpressionOrIdentifierAsLiteral(arg, context);
+
+ database_path = checkAndGetLiteralArgument<String>(args[0], "database_path");
+ remote_table_name = checkAndGetLiteralArgument<String>(args[1], "table_name");
+
+ sqlite_db = openSQLiteDB(database_path, context);
+}
+
+
+void registerTableFunctionSQLite(TableFunctionFactory & factory)
+{
+ factory.registerFunction<TableFunctionSQLite>();
+}
+
+}
+
+#endif