dbcli/sqlglot
1
0
Fork 0
Code Issues Activity

Merging upstream version 18.11.2.

Browse source 
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-13 21:04:58 +01:00
parent 15b8b39545
commit c37998973e
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
88 changed files with 52059 additions and 46960 deletions
Download patch file Download diff file Expand all files Collapse all files

9
sqlglot/dialects/dialect.py
View file

@ -81,6 +81,8 @@ class _Dialect(type):
klass.INVERSE_TIME_MAPPING = {v: k for k, v in klass.TIME_MAPPING.items()}
klass.INVERSE_TIME_TRIE = new_trie(klass.INVERSE_TIME_MAPPING)
klass.INVERSE_ESCAPE_SEQUENCES = {v: k for k, v in klass.ESCAPE_SEQUENCES.items()}
klass.tokenizer_class = getattr(klass, "Tokenizer", Tokenizer)
klass.parser_class = getattr(klass, "Parser", Parser)
klass.generator_class = getattr(klass, "Generator", Generator)
@ -188,6 +190,9 @@ class Dialect(metaclass=_Dialect):
# special syntax cast(x as date format 'yyyy') defaults to time_mapping
FORMAT_MAPPING: t.Dict[str, str] = {}
# Mapping of an unescaped escape sequence to the corresponding character
ESCAPE_SEQUENCES: t.Dict[str, str] = {}
# Columns that are auto-generated by the engine corresponding to this dialect
# Such columns may be excluded from SELECT * queries, for example
PSEUDOCOLUMNS: t.Set[str] = set()
@ -204,6 +209,8 @@ class Dialect(metaclass=_Dialect):
INVERSE_TIME_MAPPING: t.Dict[str, str] = {}
INVERSE_TIME_TRIE: t.Dict = {}
INVERSE_ESCAPE_SEQUENCES: t.Dict[str, str] = {}
def __eq__(self, other: t.Any) -> bool:
return type(self) == other
@ -245,7 +252,7 @@ class Dialect(metaclass=_Dialect):
"""
Normalizes an unquoted identifier to either lower or upper case, thus essentially
making it case-insensitive. If a dialect treats all identifiers as case-insensitive,
they will be normalized regardless of being quoted or not.
they will be normalized to lowercase regardless of being quoted or not.
"""
if isinstance(expression, exp.Identifier) and (
not expression.quoted or cls.RESOLVES_IDENTIFIERS_AS_UPPERCASE is None