|
1 | | -package net.sf.jsqlparser.test.select; |
2 | | - |
3 | | -import java.io.StringReader; |
4 | | - |
5 | | -import net.sf.jsqlparser.parser.CCJSqlParserManager; |
6 | | -import net.sf.jsqlparser.statement.Statement; |
7 | | - |
8 | | -public class MemoryTest { |
9 | | - |
10 | | - public static void main(String[] args) throws Exception { |
11 | | - System.gc(); |
12 | | - System.out.println(Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()); |
13 | | - CCJSqlParserManager parserManager = new CCJSqlParserManager(); |
14 | | - |
15 | | - /* |
16 | | - * String longQuery = new String( |
17 | | - * "select * from ( SELECT intermediate.id as id , intermediate.date as " + |
18 | | - * "date FROM ( SELECT DISTINCT ( id ) FROM ( SELECT " + |
19 | | - * "wct_workflows.workflow_id as id , wct_transaction.date as date FROM " + |
20 | | - * "wct_audit_entry , wct_transaction , wct_workflows WHERE " + |
21 | | - * "( wct_audit_entry.privilege = 'W' or wct_audit_entry.privilege = " + |
22 | | - * "'C' ) and wct_audit_entry.outcome = 't' and " + |
23 | | - * "wct_audit_entry.transaction_id = wct_transaction.transaction_id and " + |
24 | | - * "wct_transaction.user_id = 164 and wct_audit_entry.object_id = " + |
25 | | - * "wct_workflows.active_version_id ))) UNION SELECT wct_workflows.workflow_id as " + |
26 | | - * "id , wct_transaction.date as date FROM wct_audit_entry , " + |
27 | | - * "wct_transaction , wct_workflows WHERE ( wct_audit_entry.privilege = " + |
28 | | - * "'W' or wct_audit_entry.privilege = 'C' ) and wct_audit_entry.outcome " + |
29 | | - * "= 't' and wct_audit_entry.transaction_id = " + |
30 | | - * "wct_transaction.transaction_id and wct_transaction.user_id = 164 and " + |
31 | | - * "afdf= ( select wct_audit_entry.object_id from wct_audit_entry , " + |
32 | | - * "wct_workflow_archive where wct_audit_entry.object_id = " + |
33 | | - * "wct_workflow_archive.archive_id and wct_workflows.workflow_id = " + |
34 | | - * "wct_workflow_archive.workflow_id ) " + |
35 | | - * "UNION SELECT wct_workflows.workflow_id " + |
36 | | - * "as id , wct_transaction.date as date FROM wct_audit_entry , " + |
37 | | - * "wct_transaction , wct_workflows WHERE ( wct_audit_entry.privilege = " + |
38 | | - * "'W' OR wct_audit_entry.privilege = 'E' OR wct_audit_entry.privilege = " + |
39 | | - * "'A' ) and wct_audit_entry.outcome = 't' and " + |
40 | | - * "wct_audit_entry.transaction_id = wct_transaction.transaction_id and " + |
41 | | - * "wct_transaction.user_id = 164 and wct_audit_entry.object_id = " + |
42 | | - * "wct_workflows.workflow_id UNION SELECT * FROM interm2 , wct_workflow_docs WHERE " + |
43 | | - * "interm2.id = wct_workflow_docs.document_id ORDER BY id , date DESC "); |
44 | | - */ |
45 | | - String longQuery = new String("select * from k where ID > 4"); |
46 | | - |
47 | | - /* |
48 | | - * String longQuery = "select * from ( SELECT intermediate.id as id , intermediate.date as " |
49 | | - * + "date FROM ( SELECT DISTINCT ( id ) FROM ( SELECT " + |
50 | | - * "wct_workflows.workflow_id as id , wct_transaction.date as date FROM " + |
51 | | - * "wct_audit_entry , wct_transaction , wct_workflows WHERE " + |
52 | | - * "( wct_audit_entry.privilege = 'W' or wct_audit_entry.privilege = " + "'C' ))))"; |
53 | | - */ |
54 | | - /* |
55 | | - * String longQuery = "select * from d WHERE " + |
56 | | - * "( wct_audit_entry.privilege = 'W' or wct_audit_entry.privilege = " + |
57 | | - * "'C' ) and wct_audit_entry.outcome = 't' and " + |
58 | | - * "wct_audit_entry.transaction_id = wct_transaction.transaction_id and " + |
59 | | - * "wct_transaction.user_id = 164 and wct_audit_entry.object_id = " + |
60 | | - * "wct_workflows.active_version_id "; |
61 | | - */ |
62 | | - StringReader stringReader = new StringReader(longQuery); |
63 | | - Statement statement = parserManager.parse(stringReader); |
64 | | - // stringReader = new StringReader(longQuery); |
65 | | - // Statement statement2 = parserManager.parse(stringReader); |
66 | | - // stringReader = null; |
67 | | - // statement2 = null; |
68 | | - statement = null; |
69 | | - parserManager = null; |
70 | | - longQuery = null; |
71 | | - System.gc(); |
72 | | - System.out.println(Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()); |
73 | | - |
74 | | - } |
75 | | -} |
| 1 | +package net.sf.jsqlparser.test.select; |
| 2 | + |
| 3 | +import java.io.StringReader; |
| 4 | + |
| 5 | +import net.sf.jsqlparser.parser.CCJSqlParserManager; |
| 6 | +import net.sf.jsqlparser.statement.Statement; |
| 7 | + |
| 8 | +public class MemoryTest { |
| 9 | + |
| 10 | + public static void main(String[] args) throws Exception { |
| 11 | + System.gc(); |
| 12 | + System.out.println(Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()); |
| 13 | + CCJSqlParserManager parserManager = new CCJSqlParserManager(); |
| 14 | + |
| 15 | + /* |
| 16 | + * String longQuery = new String( |
| 17 | + * "select * from ( SELECT intermediate.id as id , intermediate.date as " + |
| 18 | + * "date FROM ( SELECT DISTINCT ( id ) FROM ( SELECT " + |
| 19 | + * "wct_workflows.workflow_id as id , wct_transaction.date as date FROM " + |
| 20 | + * "wct_audit_entry , wct_transaction , wct_workflows WHERE " + |
| 21 | + * "( wct_audit_entry.privilege = 'W' or wct_audit_entry.privilege = " + |
| 22 | + * "'C' ) and wct_audit_entry.outcome = 't' and " + |
| 23 | + * "wct_audit_entry.transaction_id = wct_transaction.transaction_id and " + |
| 24 | + * "wct_transaction.user_id = 164 and wct_audit_entry.object_id = " + |
| 25 | + * "wct_workflows.active_version_id ))) UNION SELECT wct_workflows.workflow_id as " + |
| 26 | + * "id , wct_transaction.date as date FROM wct_audit_entry , " + |
| 27 | + * "wct_transaction , wct_workflows WHERE ( wct_audit_entry.privilege = " + |
| 28 | + * "'W' or wct_audit_entry.privilege = 'C' ) and wct_audit_entry.outcome " + |
| 29 | + * "= 't' and wct_audit_entry.transaction_id = " + |
| 30 | + * "wct_transaction.transaction_id and wct_transaction.user_id = 164 and " + |
| 31 | + * "afdf= ( select wct_audit_entry.object_id from wct_audit_entry , " + |
| 32 | + * "wct_workflow_archive where wct_audit_entry.object_id = " + |
| 33 | + * "wct_workflow_archive.archive_id and wct_workflows.workflow_id = " + |
| 34 | + * "wct_workflow_archive.workflow_id ) " + |
| 35 | + * "UNION SELECT wct_workflows.workflow_id " + |
| 36 | + * "as id , wct_transaction.date as date FROM wct_audit_entry , " + |
| 37 | + * "wct_transaction , wct_workflows WHERE ( wct_audit_entry.privilege = " + |
| 38 | + * "'W' OR wct_audit_entry.privilege = 'E' OR wct_audit_entry.privilege = " + |
| 39 | + * "'A' ) and wct_audit_entry.outcome = 't' and " + |
| 40 | + * "wct_audit_entry.transaction_id = wct_transaction.transaction_id and " + |
| 41 | + * "wct_transaction.user_id = 164 and wct_audit_entry.object_id = " + |
| 42 | + * "wct_workflows.workflow_id UNION SELECT * FROM interm2 , wct_workflow_docs WHERE " + |
| 43 | + * "interm2.id = wct_workflow_docs.document_id ORDER BY id , date DESC "); |
| 44 | + */ |
| 45 | + String longQuery = "select * from k where ID > 4"; |
| 46 | + |
| 47 | + /* |
| 48 | + * String longQuery = "select * from ( SELECT intermediate.id as id , intermediate.date as " |
| 49 | + * + "date FROM ( SELECT DISTINCT ( id ) FROM ( SELECT " + |
| 50 | + * "wct_workflows.workflow_id as id , wct_transaction.date as date FROM " + |
| 51 | + * "wct_audit_entry , wct_transaction , wct_workflows WHERE " + |
| 52 | + * "( wct_audit_entry.privilege = 'W' or wct_audit_entry.privilege = " + "'C' ))))"; |
| 53 | + */ |
| 54 | + /* |
| 55 | + * String longQuery = "select * from d WHERE " + |
| 56 | + * "( wct_audit_entry.privilege = 'W' or wct_audit_entry.privilege = " + |
| 57 | + * "'C' ) and wct_audit_entry.outcome = 't' and " + |
| 58 | + * "wct_audit_entry.transaction_id = wct_transaction.transaction_id and " + |
| 59 | + * "wct_transaction.user_id = 164 and wct_audit_entry.object_id = " + |
| 60 | + * "wct_workflows.active_version_id "; |
| 61 | + */ |
| 62 | + StringReader stringReader = new StringReader(longQuery); |
| 63 | + Statement statement = parserManager.parse(stringReader); |
| 64 | + // stringReader = new StringReader(longQuery); |
| 65 | + // Statement statement2 = parserManager.parse(stringReader); |
| 66 | + // stringReader = null; |
| 67 | + // statement2 = null; |
| 68 | + statement = null; |
| 69 | + parserManager = null; |
| 70 | + longQuery = null; |
| 71 | + System.gc(); |
| 72 | + System.out.println(Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()); |
| 73 | + |
| 74 | + } |
| 75 | +} |
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