我在Mac上使用的是postgres 10.5和liquibase 3.6.2。 我核查并重新创建我的数据库，运行liquibase update，它可以工作。 但是第二次liquibase更新失败，但pkey已经存在。
第一次liquibase更新后，databasechangelog表包含97个条目。在第二个之后，它包含10个，并且它们的时间和部署ID与第一次更新之后不同！
表foo是在早期更改中创建的。 后来它被更改为bar，但是pkey仍然是foo.pkey。 Liquibase-update不应尝试重新创建foo，但它确实可以，但是由于foo.pkey已经存在而失败。
A）通常，我如何获得liquibase来输出有关其正在执行的更多信息？我尝试了两个命令：
liquibase --logLevel=debug --logFile=`pwd`/foo.log update
liquibase --logLevel debug --logFile `pwd`/foo.log update
两者看起来都一样，并且没有创建foo.log并且终端中没有更多输出。
B）如何阻止liquibase尝试重新制作数据库并破坏我的databasechangelog？
我试图做一个失败的小例子，但这似乎行得通...这里的其他人都将它与postgres 9.5.10一起使用没有问题...
我在终端中看到的是：
Starting Liquibase at Wed, 14 Nov 2018 13:06:44 PST (version 3.6.2 built at 2018-07-03 11:28:09)
Unexpected error running Liquibase: ERROR: relation "cant_change_pkey" already exists [Failed SQL: CREATE TABLE nuss.cant_change (message_id UUID NOT NULL, origin VARCHAR(4), type VARCHAR(12) NOT NULL, CONSTRAINT CANT_CHANGE_PKEY PRIMARY KEY (message_id), UNIQUE (message_id))]
liquibase.exception.MigrationFailedException: Migration failed for change set db/changelog/changelog-new1.xml::first-one::rstrauss:
Reason: liquibase.exception.DatabaseException: ERROR: relation "cant_change_pkey" already exists [Failed SQL: CREATE TABLE nuss.cant_change (message_id UUID NOT NULL, origin VARCHAR(4), type VARCHAR(12) NOT NULL, CONSTRAINT CANT_CHANGE_PKEY PRIMARY KEY (message_id), UNIQUE (message_id))]
at liquibase.changelog.ChangeSet.execute(ChangeSet.java:637)
at liquibase.changelog.visitor.UpdateVisitor.visit(UpdateVisitor.java:53)
at liquibase.changelog.ChangeLogIterator.run(ChangeLogIterator.java:78)
at liquibase.Liquibase.update(Liquibase.java:202)
at liquibase.Liquibase.update(Liquibase.java:179)
at liquibase.integration.commandline.Main.doMigration(Main.java:1205)
at liquibase.integration.commandline.Main.run(Main.java:191)
at liquibase.integration.commandline.Main.main(Main.java:129)
Caused by: liquibase.exception.DatabaseException: ERROR: relation "cant_change_pkey" already exists [Failed SQL: CREATE TABLE nuss.cant_change (message_id UUID NOT NULL, origin VARCHAR(4), type VARCHAR(12) NOT NULL, CONSTRAINT CANT_CHANGE_PKEY PRIMARY KEY (message_id), UNIQUE (message_id))]
at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:356)
at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:57)
at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:125)
at liquibase.database.AbstractJdbcDatabase.execute(AbstractJdbcDatabase.java:1229)
at liquibase.database.AbstractJdbcDatabase.executeStatements(AbstractJdbcDatabase.java:1211)
at liquibase.changelog.ChangeSet.execute(ChangeSet.java:600)
... 7 common frames omitted
Caused by: org.postgresql.util.PSQLException: ERROR: relation "cant_change_pkey" already exists
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2476)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2189)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:300)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:428)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:354)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:301)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:287)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:264)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:260)
at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:352)
... 12 common frames omitted
有关更多信息，请使用--logLevel标志