liquibase-core/src/main/java/liquibase/database/core/HsqlDatabase.java
public static boolean supportsDefaultValueComputed(String columnType, String defaultValue) {
        HashSet<String> possibleComputedValues = SUPPORTED_DEFAULT_VALUE_COMPUTED_MAP.get(columnType);
        return (possibleComputedValues != null) && possibleComputedValues.contains(defaultValue.toLowerCase());
    }
public static boolean supportsDefaultValueComputed(String columnType, String defaultValue) {
        HashSet<String> possibleComputedValues = SUPPORTED_DEFAULT_VALUE_COMPUTED_MAP.get(columnType);
        return (possibleComputedValues != null) && possibleComputedValues.contains(defaultValue.toLowerCase());
    }
public static boolean supportsDefaultValueComputed ( String columnType , String defaultValue ) { HashSet < String > possibleComputedValues = SUPPORTED_DEFAULT_VALUE_COMPUTED_MAP . get ( columnType ) ; return ( possibleComputedValues != null ) && possibleComputedValues . contains ( defaultValue . toLowerCase ( ) ) ; }
Checks to see if the string is an acceptable computed value for HSQL
"datetime" columns are the only columns for which HSQL supports computer values.

@param columnType   String of the column's data type
@param defaultValue String to be checked for valid valueComputed in HSQL
@return boolean True if the string represents a function supported by HSQL for default values
Checks to see if the string is an acceptable computed value for HSQL datetime columns are the only columns for which HSQL supports computer values .