mirror of
https://github.com/querydsl/querydsl.git
synced 2026-06-13 21:01:01 +08:00
65 lines
2.0 KiB
Java
65 lines
2.0 KiB
Java
/*
|
|
* Copyright (c) 2010 Mysema Ltd.
|
|
* All rights reserved.
|
|
*
|
|
*/
|
|
package com.mysema.query.sql;
|
|
|
|
import com.mysema.query.types.Ops;
|
|
|
|
/**
|
|
* PostgresTemplates is an SQL dialect for Postgres
|
|
*
|
|
* tested with Postgres 8.4
|
|
*
|
|
* @author tiwe
|
|
*
|
|
*/
|
|
public class PostgresTemplates extends SQLTemplates{
|
|
|
|
public PostgresTemplates(){
|
|
this(false);
|
|
}
|
|
|
|
public PostgresTemplates(boolean quote){
|
|
super("\"", quote);
|
|
// type mappings
|
|
addClass2TypeMappings("numeric(3,0)", Byte.class);
|
|
addClass2TypeMappings("double precision", Double.class);
|
|
|
|
// String
|
|
add(Ops.CONCAT, "{0} || {1}");
|
|
add(Ops.MATCHES, "{0} ~ {1}");
|
|
add(Ops.INDEX_OF, "strpos({0},{1})-1");
|
|
add(Ops.INDEX_OF_2ARGS, "strpos({0},{1})-1"); //FIXME
|
|
|
|
// like without escape
|
|
add(Ops.LIKE, "{0} like {1}");
|
|
add(Ops.ENDS_WITH, "{0} like {%1}");
|
|
add(Ops.ENDS_WITH_IC, "{0l} like {%%1}");
|
|
add(Ops.STARTS_WITH, "{0} like {1%}");
|
|
add(Ops.STARTS_WITH_IC, "{0l} like {1%%}");
|
|
add(Ops.STRING_CONTAINS, "{0} like {%1%}");
|
|
add(Ops.STRING_CONTAINS_IC, "{0l} like {%%1%%}");
|
|
|
|
// Number
|
|
add(Ops.MathOps.RANDOM, "random()");
|
|
add(Ops.MathOps.LOG, "ln({0})");
|
|
add(Ops.MathOps.LOG10, "log({0})");
|
|
|
|
// Date / time
|
|
add(Ops.DateTimeOps.YEAR, "extract(year from {0})");
|
|
add(Ops.DateTimeOps.YEAR_MONTH, "extract(year from {0}) * 100 + extract(month from {0})");
|
|
add(Ops.DateTimeOps.MONTH, "extract(month from {0})");
|
|
add(Ops.DateTimeOps.WEEK, "extract(week from {0})");
|
|
add(Ops.DateTimeOps.DAY_OF_MONTH, "extract(day from {0})");
|
|
add(Ops.DateTimeOps.DAY_OF_WEEK, "extract(dow from {0}) + 1");
|
|
add(Ops.DateTimeOps.DAY_OF_YEAR, "extract(doy from {0})");
|
|
add(Ops.DateTimeOps.HOUR, "extract(hour from {0})");
|
|
add(Ops.DateTimeOps.MINUTE, "extract(minute from {0})");
|
|
add(Ops.DateTimeOps.SECOND, "extract(second from {0})");
|
|
|
|
}
|
|
|
|
}
|