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Adding upstream version 0.28.1.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-05-22 10:57:38 +02:00
parent 88f1d47ab6
commit e28c88ef14
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
933 changed files with 194711 additions and 0 deletions
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51
tools/dbutils/json.go Normal file
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@ -0,0 +1,51 @@
package dbutils
import (
"fmt"
"strings"
)
// JSONEach returns JSON_EACH SQLite string expression with
// some normalizations for non-json columns.
func JSONEach(column string) string {
// note: we are not using the new and shorter "if(x,y)" syntax for
// compatability with custom drivers that use older SQLite version
return fmt.Sprintf(
`json_each(CASE WHEN iif(json_valid([[%s]]), json_type([[%s]])='array', FALSE) THEN [[%s]] ELSE json_array([[%s]]) END)`,
column, column, column, column,
)
}
// JSONArrayLength returns JSON_ARRAY_LENGTH SQLite string expression
// with some normalizations for non-json columns.
//
// It works with both json and non-json column values.
//
// Returns 0 for empty string or NULL column values.
func JSONArrayLength(column string) string {
// note: we are not using the new and shorter "if(x,y)" syntax for
// compatability with custom drivers that use older SQLite version
return fmt.Sprintf(
`json_array_length(CASE WHEN iif(json_valid([[%s]]), json_type([[%s]])='array', FALSE) THEN [[%s]] ELSE (CASE WHEN [[%s]] = '' OR [[%s]] IS NULL THEN json_array() ELSE json_array([[%s]]) END) END)`,
column, column, column, column, column, column,
)
}
// JSONExtract returns a JSON_EXTRACT SQLite string expression with
// some normalizations for non-json columns.
func JSONExtract(column string, path string) string {
// prefix the path with dot if it is not starting with array notation
if path != "" && !strings.HasPrefix(path, "[") {
path = "." + path
}
return fmt.Sprintf(
// note: the extra object wrapping is needed to workaround the cases where a json_extract is used with non-json columns.
"(CASE WHEN json_valid([[%s]]) THEN JSON_EXTRACT([[%s]], '$%s') ELSE JSON_EXTRACT(json_object('pb', [[%s]]), '$.pb%s') END)",
column,
column,
path,
column,
path,
)
}