def _random(t, expr):
return sa.func.random()
_operation_registry.update({
ops.Literal: _literal,
# strings
ops.Substring: _substr,
ops.StringFind: _string_find,
ops.Capitalize: _capitalize,
ops.RegexSearch: infix_op('REGEXP'),
# math
ops.Log: _log,
ops.Log2: unary(sa.func.log2),
ops.Log10: unary(sa.func.log10),
ops.Round: _round,
ops.RandomScalar: _random,
# dates and times
ops.Date: unary(sa.func.date),
ops.DateAdd: infix_op('+'),
ops.DateSub: infix_op('-'),
ops.DateDiff: fixed_arity(sa.func.datediff, 2),
ops.TimestampAdd: infix_op('+'),
ops.TimestampSub: infix_op('-'),
ops.TimestampDiff: _timestamp_diff,
ops.DateTruncate: _truncate,
ops.TimestampTruncate: _truncate,
ops.IntervalFromInteger: _interval_from_integer,
ops.Strftime: fixed_arity(sa.func.date_format, 2),
ops.Literal:
_literal,
# strings
ops.Substring:
_substr,
ops.StringFind:
_string_find,
ops.Capitalize:
_capitalize,
ops.RegexSearch:
infix_op('REGEXP'),
# math
ops.Log:
_log,
ops.Log2:
unary(sa.func.log2),
ops.Log10:
unary(sa.func.log10),
ops.Round:
_round,
ops.RandomScalar:
_random,
# dates and times
ops.Date:
unary(sa.func.date),
ops.DateAdd:
infix_op('+'),
ops.DateSub:
infix_op('-'),
ops.DateDiff:
fixed_arity(sa.func.datediff, 2),
# types ops.Cast: _cast, ops.TypeOf: _typeof, # Floating ops.IsNan: _is_nan, ops.IsInf: _is_inf, # null handling ops.IfNull: fixed_arity(sa.func.coalesce, 2), # boolean reductions ops.Any: unary(sa.func.bool_or), ops.All: unary(sa.func.bool_and), ops.NotAny: unary(lambda x: sa.not_(sa.func.bool_or(x))), ops.NotAll: unary(lambda x: sa.not_(sa.func.bool_and(x))), # strings ops.Substring: _substr, ops.StringFind: _string_find, ops.GroupConcat: _string_agg, ops.Capitalize: unary(sa.func.initcap),
return translator
_operation_registry = alch._operation_registry.copy()
_operation_registry.update(
{
# aggregate methods
ops.Count: _reduction(sa.func.count),
ops.Max: _reduction('max'),
ops.Min: _reduction('min'),
ops.Sum: _reduction('sum'),
ops.Mean: _reduction('avg', 'float64'),
# string methods
ops.LStrip: unary(sa.func.ltrim),
ops.Lowercase: unary(sa.func.lower),
ops.RStrip: unary(sa.func.rtrim),
ops.Repeat: fixed_arity(sa.func.replicate, 2),
ops.Reverse: unary(sa.func.reverse),
ops.StringFind: _string_find,
ops.StringLength: unary(sa.func.length),
ops.StringReplace: fixed_arity(sa.func.replace, 3),
ops.Strip: unary(sa.func.trim),
ops.Substring: _substr,
ops.Uppercase: unary(sa.func.upper),
# math
ops.Abs: unary(sa.func.abs),
ops.Acos: unary(sa.func.acos),
ops.Asin: unary(sa.func.asin),
ops.Atan2: fixed_arity(sa.func.atn2, 2),
ops.ExtractDayOfYear: _strftime_int('%j'),
ops.ExtractQuarter: _extract_quarter,
ops.ExtractEpochSeconds: _extract_epoch_seconds,
ops.ExtractHour: _strftime_int('%H'),
ops.ExtractMinute: _strftime_int('%M'),
ops.ExtractSecond: _strftime_int('%S'),
ops.ExtractMillisecond: _millisecond,
ops.TimestampNow: _now,
ops.IdenticalTo: _identical_to,
ops.RegexSearch: fixed_arity(sa.func._ibis_sqlite_regex_search, 2),
ops.RegexReplace: fixed_arity(sa.func._ibis_sqlite_regex_replace, 3),
ops.RegexExtract: fixed_arity(sa.func._ibis_sqlite_regex_extract, 3),
ops.LPad: _lpad,
ops.RPad: _rpad,
ops.Repeat: _repeat,
ops.Reverse: unary(sa.func._ibis_sqlite_reverse),
ops.StringAscii: unary(sa.func._ibis_sqlite_string_ascii),
ops.Capitalize: unary(sa.func._ibis_sqlite_capitalize),
ops.Translate: fixed_arity(sa.func._ibis_sqlite_translate, 3),
ops.Sqrt: unary(sa.func._ibis_sqlite_sqrt),
ops.Power: fixed_arity(sa.func._ibis_sqlite_power, 2),
ops.Exp: unary(sa.func._ibis_sqlite_exp),
ops.Ln: unary(sa.func._ibis_sqlite_ln),
ops.Log: _log,
ops.Log10: unary(sa.func._ibis_sqlite_log10),
ops.Log2: unary(sa.func._ibis_sqlite_log2),
ops.Floor: unary(sa.func._ibis_sqlite_floor),
ops.Ceil: unary(sa.func._ibis_sqlite_ceil),
ops.Sign: unary(sa.func._ibis_sqlite_sign),
ops.FloorDivide: fixed_arity(sa.func._ibis_sqlite_floordiv, 2),
ops.Modulus: fixed_arity(sa.func._ibis_sqlite_mod, 2),
ops.IdenticalTo: _identical_to, ops.RegexSearch: fixed_arity(sa.func._ibis_sqlite_regex_search, 2), ops.RegexReplace: fixed_arity(sa.func._ibis_sqlite_regex_replace, 3), ops.RegexExtract: fixed_arity(sa.func._ibis_sqlite_regex_extract, 3), ops.LPad: _lpad, ops.RPad: _rpad, ops.Repeat: _repeat, ops.Reverse: unary(sa.func._ibis_sqlite_reverse), ops.StringAscii: unary(sa.func._ibis_sqlite_string_ascii), ops.Capitalize: unary(sa.func._ibis_sqlite_capitalize), ops.Translate: fixed_arity(sa.func._ibis_sqlite_translate, 3), ops.Sqrt: unary(sa.func._ibis_sqlite_sqrt), ops.Power: fixed_arity(sa.func._ibis_sqlite_power, 2), ops.Exp: unary(sa.func._ibis_sqlite_exp), ops.Ln: unary(sa.func._ibis_sqlite_ln), ops.Log:
return sa.func.dayname(sa_arg)
_operation_registry.update(
{
ops.Literal: _literal,
ops.TableColumn: _table_column,
# types
ops.Cast: _cast,
# Floating
ops.IsNan: _is_nan,
ops.IsInf: _is_inf,
# null handling
ops.IfNull: fixed_arity(sa.func.coalesce, 2),
# boolean reductions
ops.Any: unary(sa.func.bool_or),
ops.All: unary(sa.func.bool_and),
ops.NotAny: unary(lambda x: sa.not_(sa.func.bool_or(x))),
ops.NotAll: unary(lambda x: sa.not_(sa.func.bool_and(x))),
# strings
ops.Substring: _substr,
ops.StringFind: _string_find,
ops.GroupConcat: _string_agg,
ops.Capitalize: unary(sa.func.initcap),
ops.RegexSearch: fixed_arity(sa.func.REGEXP_INSTR, 2),
ops.RegexReplace: _regex_replace,
ops.Translate: fixed_arity('translate', 3),
ops.RegexExtract: _regex_extract,
ops.StringJoin: _string_join,
# math
ops.Log: _log,
ops.Literal: _literal, # We override this here to support time zones ops.TableColumn: _table_column, # types ops.Cast: _cast, ops.TypeOf: _typeof, # null handling ops.IfNull: fixed_arity(sa.func.coalesce, 2), # boolean reductions ops.Any: unary(sa.func.bool_or), ops.All: unary(sa.func.bool_and), ops.NotAny: unary(lambda x: sa.not_(sa.func.bool_or(x))), ops.NotAll: unary(lambda x: sa.not_(sa.func.bool_and(x))), # strings ops.Substring: _substr, ops.StringFind: _string_find, ops.GroupConcat: _string_agg, ops.Capitalize: unary(sa.func.initcap),
