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Unverified 提交 f30a0ba7 authored 作者: Evgenij Ryazanov's avatar Evgenij Ryazanov 提交者： GitHub
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Merge pull request #1468 from katzyn/identity 

Parse GENERATED * AS IDENTITY correctly
上级 5fad0d3b 2cdd95a8
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h2/src/docsrc/help/help.csv
浏览文件 @ f30a0ba7
......@@ -703,12 +703,7 @@ CREATE SCHEMA TEST_SCHEMA AUTHORIZATION SA
"Commands (DDL)","CREATE SEQUENCE","
CREATE SEQUENCE [ IF NOT EXISTS ] newSequenceName
[ START WITH long ]
[ INCREMENT BY long ]
[ MINVALUE long | NOMINVALUE | NO MINVALUE ]
[ MAXVALUE long | NOMAXVALUE | NO MAXVALUE ]
[ CYCLE long | NOCYCLE | NO CYCLE ]
[ CACHE long | NOCACHE | NO CACHE ]
sequenceOptions
","
Creates a new sequence.
The data type of a sequence is BIGINT.
......@@ -2085,7 +2080,9 @@ AES
"Other Grammar","Column Definition","
dataType [ VISIBLE | INVISIBLE ]
[ { DEFAULT expression | AS computedColumnExpression } ]
[ { DEFAULT expression
| AS computedColumnExpression
| GENERATED {ALWAYS | BY DEFAULT} AS IDENTITY [(sequenceOptions)]} ]
[ ON UPDATE expression ] [ [ NOT ] NULL ]
[ { AUTO_INCREMENT | IDENTITY } [ ( startInt [, incrementInt ] ) ] ]
[ SELECTIVITY selectivity ] [ COMMENT expression ]
......@@ -2097,9 +2094,11 @@ On update column expression is used if row is updated,
at least one column have a new value that is different from its previous value
and value for this column is not set explicitly in update statement.
Identity and auto-increment columns are columns with a sequence as the
default. The column declared as the identity columns is implicitly the
primary key column of this table (unlike auto-increment columns).
Identity, auto-increment, or generated as identity columns are columns with a sequence as the default.
The column declared as the identity columns with IDENTITY data type or with IDENTITY () clause
is implicitly the primary key column of this table.
AUTO_INCREMENT and GENERATED clauses do not create the primary key constraint.
GENERATED ALWAYS is accepted by treated in the same way as GENERATED BY DEFAULT.
The invisible column will not be displayed as a result of SELECT * query.
Otherwise, it works as normal column.
......@@ -2483,6 +2482,19 @@ An expression in a SELECT statement.
ID AS VALUE
"
"Other Grammar","Sequence options","
[ START WITH long ]
[ INCREMENT BY long ]
[ MINVALUE long | NOMINVALUE | NO MINVALUE ]
[ MAXVALUE long | NOMAXVALUE | NO MAXVALUE ]
[ CYCLE long | NOCYCLE | NO CYCLE ]
[ CACHE long | NOCACHE | NO CACHE ]
","
Options of a sequence.
","
START WITH 1
"
"Other Grammar","Set clause list","
{ { columnName = { DEFAULT | expression } } [,...] } |
{ ( columnName [,...] ) = ( select ) }
......
h2/src/docsrc/html/changelog.html
浏览文件 @ f30a0ba7
......@@ -21,6 +21,8 @@ Change Log
<h2>Next Version (unreleased)</h2>
<ul>
<li>Issue #1437: Generated as Identity has a different behaviour.
</li>
<li>PR #1467: Fix subtraction of timestamps
</li>
<li>PR #1464: Assorted minor changes in window processing code
......
h2/src/main/org/h2/command/Parser.java
浏览文件 @ f30a0ba7
......@@ -65,6 +65,7 @@ import org.h2.api.IntervalQualifier;
import org.h2.api.Trigger;
import org.h2.command.ddl.AlterIndexRename;
import org.h2.command.ddl.AlterSchemaRename;
import org.h2.command.ddl.AlterSequence;
import org.h2.command.ddl.AlterTableAddConstraint;
import org.h2.command.ddl.AlterTableAlterColumn;
import org.h2.command.ddl.AlterTableDropConstraint;
......@@ -108,9 +109,9 @@ import org.h2.command.ddl.DropView;
import org.h2.command.ddl.GrantRevoke;
import org.h2.command.ddl.PrepareProcedure;
import org.h2.command.ddl.SchemaCommand;
import org.h2.command.ddl.SequenceOptions;
import org.h2.command.ddl.SetComment;
import org.h2.command.ddl.TruncateTable;
import org.h2.command.dml.AlterSequence;
import org.h2.command.dml.AlterTableSet;
import org.h2.command.dml.BackupCommand;
import org.h2.command.dml.Call;
......@@ -171,10 +172,10 @@ import org.h2.expression.UnaryOperation;
import org.h2.expression.ValueExpression;
import org.h2.expression.Variable;
import org.h2.expression.Wildcard;
import org.h2.expression.aggregate.DataAnalysisOperation;
import org.h2.expression.aggregate.AbstractAggregate;
import org.h2.expression.aggregate.Aggregate;
import org.h2.expression.aggregate.Aggregate.AggregateType;
import org.h2.expression.aggregate.DataAnalysisOperation;
import org.h2.expression.aggregate.JavaAggregate;
import org.h2.expression.aggregate.Window;
import org.h2.expression.aggregate.WindowFrame;
......@@ -4875,20 +4876,12 @@ public class Parser {
}
read("AS");
read("IDENTITY");
long start = 1, increment = 1;
SequenceOptions options = new SequenceOptions();
if (readIf(OPEN_PAREN)) {
read("START");
readIf(WITH);
start = readLong();
readIf(COMMA);
if (readIf("INCREMENT")) {
readIf("BY");
increment = readLong();
}
parseSequenceOptions(options, null, true);
read(CLOSE_PAREN);
}
column.setPrimaryKey(true);
column.setAutoIncrement(true, start, increment);
column.setAutoIncrementOptions(options);
}
if (readIf(ON)) {
read("UPDATE");
......@@ -4925,15 +4918,15 @@ public class Parser {
}
private void parseAutoIncrement(Column column) {
long start = 1, increment = 1;
SequenceOptions options = new SequenceOptions();
if (readIf(OPEN_PAREN)) {
start = readLong();
options.setStartValue(ValueExpression.get(ValueLong.get(readLong())));
if (readIf(COMMA)) {
increment = readLong();
options.setIncrement(ValueExpression.get(ValueLong.get(readLong())));
}
read(CLOSE_PAREN);
}
column.setAutoIncrement(true, start, increment);
column.setAutoIncrementOptions(options);
}
private String readCommentIf() {
......@@ -5666,49 +5659,9 @@ public class Parser {
CreateSequence command = new CreateSequence(session, getSchema());
command.setIfNotExists(ifNotExists);
command.setSequenceName(sequenceName);
while (true) {
if (readIf("START")) {
readIf(WITH);
command.setStartWith(readExpression());
} else if (readIf("INCREMENT")) {
readIf("BY");
command.setIncrement(readExpression());
} else if (readIf("MINVALUE")) {
command.setMinValue(readExpression());
} else if (readIf("NOMINVALUE")) {
command.setMinValue(null);
} else if (readIf("MAXVALUE")) {
command.setMaxValue(readExpression());
} else if (readIf("NOMAXVALUE")) {
command.setMaxValue(null);
} else if (readIf("CYCLE")) {
command.setCycle(true);
} else if (readIf("NOCYCLE")) {
command.setCycle(false);
} else if (readIf("NO")) {
if (readIf("MINVALUE")) {
command.setMinValue(null);
} else if (readIf("MAXVALUE")) {
command.setMaxValue(null);
} else if (readIf("CYCLE")) {
command.setCycle(false);
} else if (readIf("CACHE")) {
command.setCacheSize(ValueExpression.get(ValueLong.get(1)));
} else {
break;
}
} else if (readIf("CACHE")) {
command.setCacheSize(readExpression());
} else if (readIf("NOCACHE")) {
command.setCacheSize(ValueExpression.get(ValueLong.get(1)));
} else if (readIf("BELONGS_TO_TABLE")) {
command.setBelongsToTable(true);
} else if (readIf(ORDER)) {
// Oracle compatibility
} else {
break;
}
}
SequenceOptions options = new SequenceOptions();
parseSequenceOptions(options, command, true);
command.setOptions(options);
return command;
}
......@@ -6231,46 +6184,60 @@ public class Parser {
AlterSequence command = new AlterSequence(session, getSchema());
command.setSequenceName(sequenceName);
command.setIfExists(ifExists);
while (true) {
if (readIf("RESTART")) {
read(WITH);
command.setStartWith(readExpression());
SequenceOptions options = new SequenceOptions();
parseSequenceOptions(options, null, false);
command.setOptions(options);
return command;
}
private void parseSequenceOptions(SequenceOptions options, CreateSequence command, boolean forCreate) {
for (;;) {
if (readIf(forCreate ? "START" : "RESTART")) {
readIf(WITH);
options.setStartValue(readExpression());
} else if (readIf("INCREMENT")) {
read("BY");
command.setIncrement(readExpression());
readIf("BY");
options.setIncrement(readExpression());
} else if (readIf("MINVALUE")) {
command.setMinValue(readExpression());
options.setMinValue(readExpression());
} else if (readIf("NOMINVALUE")) {
command.setMinValue(null);
options.setMinValue(ValueExpression.getNull());
} else if (readIf("MAXVALUE")) {
command.setMaxValue(readExpression());
options.setMaxValue(readExpression());
} else if (readIf("NOMAXVALUE")) {
command.setMaxValue(null);
options.setMaxValue(ValueExpression.getNull());
} else if (readIf("CYCLE")) {
command.setCycle(true);
options.setCycle(true);
} else if (readIf("NOCYCLE")) {
command.setCycle(false);
options.setCycle(false);
} else if (readIf("NO")) {
if (readIf("MINVALUE")) {
command.setMinValue(null);
options.setMinValue(ValueExpression.getNull());
} else if (readIf("MAXVALUE")) {
command.setMaxValue(null);
options.setMaxValue(ValueExpression.getNull());
} else if (readIf("CYCLE")) {
command.setCycle(false);
options.setCycle(false);
} else if (readIf("CACHE")) {
command.setCacheSize(ValueExpression.get(ValueLong.get(1)));
options.setCacheSize(ValueExpression.get(ValueLong.get(1)));
} else {
break;
}
} else if (readIf("CACHE")) {
command.setCacheSize(readExpression());
options.setCacheSize(readExpression());
} else if (readIf("NOCACHE")) {
command.setCacheSize(ValueExpression.get(ValueLong.get(1)));
options.setCacheSize(ValueExpression.get(ValueLong.get(1)));
} else if (command != null) {
if (readIf("BELONGS_TO_TABLE")) {
command.setBelongsToTable(true);
} else if (readIf(ORDER)) {
// Oracle compatibility
} else {
break;
}
} else {
break;
}
}
return command;
}
private AlterUser parseAlterUser() {
......@@ -7040,7 +7007,9 @@ public class Parser {
Expression start = readExpression();
AlterSequence command = new AlterSequence(session, schema);
command.setColumn(column);
command.setStartWith(start);
SequenceOptions options = new SequenceOptions();
options.setStartValue(start);
command.setOptions(options);
return commandIfTableExists(schema, tableName, ifTableExists, command);
} else if (readIf("SELECTIVITY")) {
AlterTableAlterColumn command = new AlterTableAlterColumn(
......
h2/src/main/org/h2/command/dml/AlterSequence.java → h2/src/main/org/h2/command/ddl/AlterSequence.java
浏览文件 @ f30a0ba7
......@@ -3,15 +3,13 @@
* and the EPL 1.0 (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.command.dml;
package org.h2.command.ddl;
import org.h2.api.ErrorCode;
import org.h2.command.CommandInterface;
import org.h2.command.ddl.SchemaCommand;
import org.h2.engine.Database;
import org.h2.engine.Right;
import org.h2.engine.Session;
import org.h2.expression.Expression;
import org.h2.message.DbException;
import org.h2.schema.Schema;
import org.h2.schema.Sequence;
......@@ -19,21 +17,19 @@ import org.h2.table.Column;
import org.h2.table.Table;
/**
* This class represents the statement
* ALTER SEQUENCE
* This class represents the statement ALTER SEQUENCE.
*/
public class AlterSequence extends SchemaCommand {
private boolean ifExists;
private Table table;
private String sequenceName;
private Sequence sequence;
private Expression start;
private Expression increment;
private Boolean cycle;
private Expression minValue;
private Expression maxValue;
private Expression cacheSize;
private SequenceOptions options;
public AlterSequence(Session session, Schema schema) {
super(session, schema);
......@@ -47,6 +43,10 @@ public class AlterSequence extends SchemaCommand {
this.sequenceName = sequenceName;
}
public void setOptions(SequenceOptions options) {
this.options = options;
}
@Override
public boolean isTransactional() {
return true;
......@@ -60,30 +60,6 @@ public class AlterSequence extends SchemaCommand {
}
}
public void setStartWith(Expression start) {
this.start = start;
}
public void setIncrement(Expression increment) {
this.increment = increment;
}
public void setCycle(Boolean cycle) {
this.cycle = cycle;
}
public void setMinValue(Expression minValue) {
this.minValue = minValue;
}
public void setMaxValue(Expression maxValue) {
this.maxValue = maxValue;
}
public void setCacheSize(Expression cacheSize) {
this.cacheSize = cacheSize;
}
@Override
public int update() {
Database db = session.getDatabase();
......@@ -99,32 +75,22 @@ public class AlterSequence extends SchemaCommand {
if (table != null) {
session.getUser().checkRight(table, Right.ALL);
}
Boolean cycle = options.getCycle();
if (cycle != null) {
sequence.setCycle(cycle);
}
if (cacheSize != null) {
long size = cacheSize.optimize(session).getValue(session).getLong();
sequence.setCacheSize(size);
Long cache = options.getCacheSize(session);
if (cache != null) {
sequence.setCacheSize(cache);
}
if (start != null || minValue != null ||
maxValue != null || increment != null) {
Long startValue = getLong(start);
Long min = getLong(minValue);
Long max = getLong(maxValue);
Long inc = getLong(increment);
sequence.modify(startValue, min, max, inc);
if (options.isRangeSet()) {
sequence.modify(options.getStartValue(session), options.getMinValue(sequence, session),
options.getMaxValue(sequence, session), options.getIncrement(session));
}
db.updateMeta(session, sequence);
return 0;
}
private Long getLong(Expression expr) {
if (expr == null) {
return null;
}
return expr.optimize(session).getValue(session).getLong();
}
@Override
public int getType() {
return CommandInterface.ALTER_SEQUENCE;
......
h2/src/main/org/h2/command/ddl/CreateSequence.java
浏览文件 @ f30a0ba7
......@@ -9,25 +9,21 @@ import org.h2.api.ErrorCode;
import org.h2.command.CommandInterface;
import org.h2.engine.Database;
import org.h2.engine.Session;
import org.h2.expression.Expression;
import org.h2.message.DbException;
import org.h2.schema.Schema;
import org.h2.schema.Sequence;
/**
* This class represents the statement
* CREATE SEQUENCE
* This class represents the statement CREATE SEQUENCE.
*/
public class CreateSequence extends SchemaCommand {
private String sequenceName;
private boolean ifNotExists;
private boolean cycle;
private Expression minValue;
private Expression maxValue;
private Expression start;
private Expression increment;
private Expression cacheSize;
private SequenceOptions options;
private boolean belongsToTable;
public CreateSequence(Session session, Schema schema) {
......@@ -42,8 +38,8 @@ public class CreateSequence extends SchemaCommand {
this.ifNotExists = ifNotExists;
}
public void setCycle(boolean cycle) {
this.cycle = cycle;
public void setOptions(SequenceOptions options) {
this.options = options;
}
@Override
......@@ -57,48 +53,17 @@ public class CreateSequence extends SchemaCommand {
throw DbException.get(ErrorCode.SEQUENCE_ALREADY_EXISTS_1, sequenceName);
}
int id = getObjectId();
Long startValue = getLong(start);
Long inc = getLong(increment);
Long cache = getLong(cacheSize);
Long min = getLong(minValue);
Long max = getLong(maxValue);
Sequence sequence = new Sequence(getSchema(), id, sequenceName, startValue, inc,
cache, min, max, cycle, belongsToTable);
Sequence sequence = new Sequence(getSchema(), id, sequenceName, options.getStartValue(session),
options.getIncrement(session), options.getCacheSize(session), options.getMinValue(null, session),
options.getMaxValue(null, session), Boolean.TRUE.equals(options.getCycle()), belongsToTable);
db.addSchemaObject(session, sequence);
return 0;
}
private Long getLong(Expression expr) {
if (expr == null) {
return null;
}
return expr.optimize(session).getValue(session).getLong();
}
public void setStartWith(Expression start) {
this.start = start;
}
public void setIncrement(Expression increment) {
this.increment = increment;
}
public void setMinValue(Expression minValue) {
this.minValue = minValue;
}
public void setMaxValue(Expression maxValue) {
this.maxValue = maxValue;
}
public void setBelongsToTable(boolean belongsToTable) {
this.belongsToTable = belongsToTable;
}
public void setCacheSize(Expression cacheSize) {
this.cacheSize = cacheSize;
}
@Override
public int getType() {
return CommandInterface.CREATE_SEQUENCE;
......
h2/src/main/org/h2/command/ddl/SequenceOptions.java 0 → 100644
浏览文件 @ f30a0ba7
/*
* Copyright 2004-2018 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.command.ddl;
import org.h2.engine.Session;
import org.h2.expression.Expression;
import org.h2.expression.ValueExpression;
import org.h2.schema.Sequence;
import org.h2.value.Value;
import org.h2.value.ValueNull;
/**
* Sequence options.
*/
public class SequenceOptions {
private Expression start;
private Expression increment;
private Expression maxValue;
private Expression minValue;
private Boolean cycle;
private Expression cacheSize;
private static Long getLong(Session session, Expression expr) {
if (expr != null) {
Value value = expr.optimize(session).getValue(session);
if (value != ValueNull.INSTANCE) {
return value.getLong();
}
}
return null;
}
public Long getStartValue(Session session) {
return getLong(session, start);
}
public void setStartValue(Expression start) {
this.start = start;
}
public Long getIncrement(Session session) {
return getLong(session, increment);
}
public void setIncrement(Expression increment) {
this.increment = increment;
}
public Long getMaxValue(Sequence sequence, Session session) {
if (maxValue == ValueExpression.getNull() && sequence != null) {
return Sequence.getDefaultMaxValue(getCurrentStart(sequence, session),
increment != null ? getIncrement(session) : sequence.getIncrement());
}
return getLong(session, maxValue);
}
public void setMaxValue(Expression maxValue) {
this.maxValue = maxValue;
}
public Long getMinValue(Sequence sequence, Session session) {
if (minValue == ValueExpression.getNull() && sequence != null) {
return Sequence.getDefaultMinValue(getCurrentStart(sequence, session),
increment != null ? getIncrement(session) : sequence.getIncrement());
}
return getLong(session, minValue);
}
public long getCurrentStart(Sequence sequence, Session session) {
return start != null ? getStartValue(session) : sequence.getCurrentValue() + sequence.getIncrement();
}
public void setMinValue(Expression minValue) {
this.minValue = minValue;
}
public Boolean getCycle() {
return cycle;
}
public void setCycle(Boolean cycle) {
this.cycle = cycle;
}
public Long getCacheSize(Session session) {
return getLong(session, cacheSize);
}
public void setCacheSize(Expression cacheSize) {
this.cacheSize = cacheSize;
}
protected boolean isRangeSet() {
return start != null || minValue != null || maxValue != null || increment != null;
}
}
h2/src/main/org/h2/schema/Sequence.java
浏览文件 @ f30a0ba7
......@@ -148,7 +148,7 @@ public class Sequence extends SchemaObjectBase {
Math.abs(increment) + Long.MIN_VALUE <= maxValue - minValue + Long.MIN_VALUE;
}
private static long getDefaultMinValue(Long startValue, long increment) {
public static long getDefaultMinValue(Long startValue, long increment) {
long v = increment >= 0 ? 1 : Long.MIN_VALUE;
if (startValue != null && increment >= 0 && startValue < v) {
v = startValue;
......@@ -156,7 +156,7 @@ public class Sequence extends SchemaObjectBase {
return v;
}
private static long getDefaultMaxValue(Long startValue, long increment) {
public static long getDefaultMaxValue(Long startValue, long increment) {
long v = increment >= 0 ? Long.MAX_VALUE : -1;
if (startValue != null && increment < 0 && startValue > v) {
v = startValue;
......
h2/src/main/org/h2/table/Column.java
浏览文件 @ f30a0ba7
......@@ -10,6 +10,7 @@ import java.util.Objects;
import org.h2.api.ErrorCode;
import org.h2.command.Parser;
import org.h2.command.ddl.SequenceOptions;
import org.h2.engine.Constants;
import org.h2.engine.Mode;
import org.h2.engine.Session;
......@@ -77,9 +78,7 @@ public class Column {
private Expression checkConstraint;
private String checkConstraintSQL;
private String originalSQL;
private boolean autoIncrement;
private long start;
private long increment;
private SequenceOptions autoIncrementOptions;
private boolean convertNullToDefault;
private Sequence sequence;
private boolean isComputed;
......@@ -440,7 +439,7 @@ public class Column {
*/
public void convertAutoIncrementToSequence(Session session, Schema schema,
int id, boolean temporary) {
if (!autoIncrement) {
if (autoIncrementOptions == null) {
DbException.throwInternalError();
}
if ("IDENTITY".equals(originalSQL)) {
......@@ -455,10 +454,13 @@ public class Column {
s = StringUtils.toUpperEnglish(s.replace('-', '_'));
sequenceName = "SYSTEM_SEQUENCE_" + s;
} while (schema.findSequence(sequenceName) != null);
Sequence seq = new Sequence(schema, id, sequenceName, start, increment);
Sequence seq = new Sequence(schema, id, sequenceName, autoIncrementOptions.getStartValue(session),
autoIncrementOptions.getIncrement(session), autoIncrementOptions.getCacheSize(session),
autoIncrementOptions.getMinValue(null, session), autoIncrementOptions.getMaxValue(null, session),
Boolean.TRUE.equals(autoIncrementOptions.getCycle()), true);
seq.setTemporary(temporary);
session.getDatabase().addSchemaObject(session, seq);
setAutoIncrement(false, 0, 0);
setAutoIncrementOptions(null);
SequenceValue seqValue = new SequenceValue(seq);
setDefaultExpression(session, seqValue);
setSequence(seq);
......@@ -603,22 +605,19 @@ public class Column {
}
public boolean isAutoIncrement() {
return autoIncrement;
return autoIncrementOptions != null;
}
/**
* Set the autoincrement flag and related properties of this column.
* Set the autoincrement flag and related options of this column.
*
* @param autoInc the new autoincrement flag
* @param start the sequence start value
* @param increment the sequence increment
* @param sequenceOptions
* sequence options, or {@code null} to reset the flag
*/
public void setAutoIncrement(boolean autoInc, long start, long increment) {
this.autoIncrement = autoInc;
this.start = start;
this.increment = increment;
public void setAutoIncrementOptions(SequenceOptions sequenceOptions) {
this.autoIncrementOptions = sequenceOptions;
this.nullable = false;
if (autoInc) {
if (sequenceOptions != null) {
convertNullToDefault = true;
}
}
......@@ -829,7 +828,7 @@ public class Column {
if (primaryKey != newColumn.primaryKey) {
return false;
}
if (autoIncrement || newColumn.autoIncrement) {
if (autoIncrementOptions != null || newColumn.autoIncrementOptions != null) {
return false;
}
if (checkConstraint != null || newColumn.checkConstraint != null) {
......
h2/src/test/org/h2/test/scripts/ddl/createSequence.sql
浏览文件 @ f30a0ba7
......@@ -45,3 +45,36 @@ DROP SEQUENCE SEQ;
CREATE SEQUENCE SEQ START WITH 0 INCREMENT BY -9223372036854775808 MINVALUE 0 MAXVALUE 9223372036854775807;
> exception SEQUENCE_ATTRIBUTES_INVALID
CREATE SEQUENCE SEQ START WITH 0 MINVALUE -10 MAXVALUE 10;
> ok
SELECT SEQUENCE_NAME, CURRENT_VALUE, INCREMENT, CACHE, MIN_VALUE, MAX_VALUE, IS_CYCLE
FROM INFORMATION_SCHEMA.SEQUENCES;
> SEQUENCE_NAME CURRENT_VALUE INCREMENT CACHE MIN_VALUE MAX_VALUE IS_CYCLE
> ------------- ------------- --------- ----- --------- --------- --------
> SEQ -1 1 32 -10 10 FALSE
> rows: 1
ALTER SEQUENCE SEQ NO MINVALUE NO MAXVALUE;
> ok
SELECT SEQUENCE_NAME, CURRENT_VALUE, INCREMENT, CACHE, MIN_VALUE, MAX_VALUE, IS_CYCLE
FROM INFORMATION_SCHEMA.SEQUENCES;
> SEQUENCE_NAME CURRENT_VALUE INCREMENT CACHE MIN_VALUE MAX_VALUE IS_CYCLE
> ------------- ------------- --------- ----- --------- ------------------- --------
> SEQ -1 1 32 0 9223372036854775807 FALSE
> rows: 1
ALTER SEQUENCE SEQ MINVALUE -100 MAXVALUE 100;
> ok
SELECT SEQUENCE_NAME, CURRENT_VALUE, INCREMENT, CACHE, MIN_VALUE, MAX_VALUE, IS_CYCLE
FROM INFORMATION_SCHEMA.SEQUENCES;
> SEQUENCE_NAME CURRENT_VALUE INCREMENT CACHE MIN_VALUE MAX_VALUE IS_CYCLE
> ------------- ------------- --------- ----- --------- --------- --------
> SEQ -1 1 32 -100 100 FALSE
> rows: 1
DROP SEQUENCE SEQ;
> ok
h2/src/test/org/h2/test/scripts/ddl/createTable.sql
浏览文件 @ f30a0ba7
......@@ -95,3 +95,22 @@ SELECT COLUMN_NAME, IS_VISIBLE FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME
DROP TABLE TEST;
> ok
CREATE TABLE TEST1(ID IDENTITY);
> ok
CREATE TABLE TEST2(ID BIGINT IDENTITY);
> ok
CREATE TABLE TEST3(ID BIGINT GENERATED BY DEFAULT AS IDENTITY);
> ok
SELECT CONSTRAINT_TYPE, TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE TABLE_SCHEMA = 'PUBLIC';
> CONSTRAINT_TYPE TABLE_NAME
> --------------- ----------
> PRIMARY KEY TEST1
> PRIMARY KEY TEST2
> rows: 2
DROP TABLE TEST1, TEST2, TEST3;
> ok
h2/src/tools/org/h2/build/doc/dictionary.txt
浏览文件 @ f30a0ba7
......@@ -797,3 +797,4 @@ xym normalizes coord setz xyzm geometrycollection multipolygon mixup rings polyg
pointzm pointz pointm dimensionality redefine forum measures
mpg casted pzm mls constrained subtypes complains
ranks rno dro rko precede cume reopens preceding unbounded rightly itr lag maximal tiles tile ntile signify
partitioned
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