diff options
Diffstat (limited to 'sqlglot/dialects/postgres.py')
| -rw-r--r-- | sqlglot/dialects/postgres.py | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/sqlglot/dialects/postgres.py b/sqlglot/dialects/postgres.py index c709665..7612330 100644 --- a/sqlglot/dialects/postgres.py +++ b/sqlglot/dialects/postgres.py @@ -58,17 +58,17 @@ def _date_diff_sql(self, expression): age = f"AGE({end}, {start})" if unit == "WEEK": - extract = f"EXTRACT(year FROM {age}) * 48 + EXTRACT(month FROM {age}) * 4 + EXTRACT(day FROM {age}) / 7" + unit = f"EXTRACT(year FROM {age}) * 48 + EXTRACT(month FROM {age}) * 4 + EXTRACT(day FROM {age}) / 7" elif unit == "MONTH": - extract = f"EXTRACT(year FROM {age}) * 12 + EXTRACT(month FROM {age})" + unit = f"EXTRACT(year FROM {age}) * 12 + EXTRACT(month FROM {age})" elif unit == "QUARTER": - extract = f"EXTRACT(year FROM {age}) * 4 + EXTRACT(month FROM {age}) / 3" + unit = f"EXTRACT(year FROM {age}) * 4 + EXTRACT(month FROM {age}) / 3" elif unit == "YEAR": - extract = f"EXTRACT(year FROM {age})" + unit = f"EXTRACT(year FROM {age})" else: - self.unsupported(f"Unsupported DATEDIFF unit {unit}") + unit = age - return f"CAST({extract} AS BIGINT)" + return f"CAST({unit} AS BIGINT)" def _substring_sql(self, expression): @@ -206,6 +206,8 @@ class Postgres(Dialect): } class Tokenizer(tokens.Tokenizer): + QUOTES = ["'", "$$"] + BIT_STRINGS = [("b'", "'"), ("B'", "'")] HEX_STRINGS = [("x'", "'"), ("X'", "'")] BYTE_STRINGS = [("e'", "'"), ("E'", "'")] @@ -236,7 +238,7 @@ class Postgres(Dialect): "UUID": TokenType.UUID, "CSTRING": TokenType.PSEUDO_TYPE, } - QUOTES = ["'", "$$"] + SINGLE_TOKENS = { **tokens.Tokenizer.SINGLE_TOKENS, "$": TokenType.PARAMETER, @@ -265,6 +267,7 @@ class Postgres(Dialect): class Generator(generator.Generator): LOCKING_READS_SUPPORTED = True + PARAMETER_TOKEN = "$" TYPE_MAPPING = { **generator.Generator.TYPE_MAPPING, # type: ignore |