diff options
Diffstat (limited to 'sqlglot/dialects/sqlite.py')
| -rw-r--r-- | sqlglot/dialects/sqlite.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sqlglot/dialects/sqlite.py b/sqlglot/dialects/sqlite.py index 2b17ff9..ef7d9aa 100644 --- a/sqlglot/dialects/sqlite.py +++ b/sqlglot/dialects/sqlite.py @@ -33,6 +33,14 @@ def _json_extract_sql(self: SQLite.Generator, expression: exp.JSONExtract) -> st return arrow_json_extract_sql(self, expression) +def _build_strftime(args: t.List) -> exp.Anonymous | exp.TimeToStr: + if len(args) == 1: + args.append(exp.CurrentTimestamp()) + if len(args) == 2: + return exp.TimeToStr(this=exp.TsOrDsToTimestamp(this=args[1]), format=args[0]) + return exp.Anonymous(this="STRFTIME", expressions=args) + + def _transform_create(expression: exp.Expression) -> exp.Expression: """Move primary key to a column and enforce auto_increment on primary keys.""" schema = expression.this @@ -82,6 +90,7 @@ class SQLite(Dialect): FUNCTIONS = { **parser.Parser.FUNCTIONS, "EDITDIST3": exp.Levenshtein.from_arg_list, + "STRFTIME": _build_strftime, } STRING_ALIASES = True @@ -93,6 +102,7 @@ class SQLite(Dialect): JSON_PATH_BRACKETED_KEY_SUPPORTED = False SUPPORTS_CREATE_TABLE_LIKE = False SUPPORTS_TABLE_ALIAS_COLUMNS = False + SUPPORTS_TO_NUMBER = False SUPPORTED_JSON_PATH_PARTS = { exp.JSONPathKey, @@ -151,7 +161,9 @@ class SQLite(Dialect): ), exp.TableSample: no_tablesample_sql, exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), + exp.TimeToStr: lambda self, e: self.func("STRFTIME", e.args.get("format"), e.this), exp.TryCast: no_trycast_sql, + exp.TsOrDsToTimestamp: lambda self, e: self.sql(e, "this"), } # SQLite doesn't generally support CREATE TABLE .. properties |