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value_numeric support for scientific notation #381

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value_numeric support for scientific notation #381

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852f32f
value_numeric support for scientific notation
crosschainer May 12, 2025
c52f675
Update src/xian/services/bds/sql.py
crosschainer May 12, 2025
7cead08
same for state
crosschainer May 12, 2025
a71c797
Update src/xian/services/bds/sql.py
crosschainer May 12, 2025
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11 changes: 7 additions & 4 deletions src/xian/services/bds/sql.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ def create_state():
value JSONB,
value_numeric NUMERIC GENERATED ALWAYS AS (
CASE
WHEN value::text ~ '^"*[0-9]+(\.[0-9]+)?"*$'
WHEN value::text ~ '^"*-?[0-9]+(\\.[0-9]+)?([eE][+-]?[0-9]+)?"*$'
THEN (trim(both '"' from value::text))::NUMERIC
ELSE NULL
END
Expand All @@ -34,7 +34,7 @@ def create_state():
);
CREATE INDEX IF NOT EXISTS idx_state_value_numeric ON state(value_numeric);
"""


def create_state_changes():
return """
Expand All @@ -45,13 +45,16 @@ def create_state_changes():
value JSONB,
value_numeric NUMERIC GENERATED ALWAYS AS (
CASE
WHEN value::text ~ '^"*[0-9]+(\.[0-9]+)?"*$'
-- Match numeric values, including integers, decimals, and scientific notation.
-- Examples of supported formats: 42, -3.14, "1e10", "-2.5E-3", "0.001", "1.23e-4".
-- Refer to test cases for additional examples and edge cases.
WHEN value::text ~ '^"*-?[0-9]+(\.[0-9]+)?([eE][+-]?[0-9]+)?"*$'
THEN (trim(both '"' from value::text))::NUMERIC
ELSE NULL
END
) STORED,
created TIMESTAMP NOT NULL
)
);
"""


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