core/src/main/java/org/apache/calcite/avatica/AvaticaConnection.java (4 lines):
	- line 69: //TODO shouldn't we move this to BuiltInConnectionProperty ?
	- line 409: // TODO check if connection is actually alive using timeout
	- line 445: // TODO: Nested ARRAYs
	- line 448: // TODO: ARRAYs of STRUCTs


core/src/main/java/org/apache/calcite/avatica/MetaImpl.java (3 lines):
	- line 180: // TODO: implement
	- line 360: // TODO: https://issues.apache.org/jira/browse/CALCITE-5549
	- line 927: //TODO: Add create parameter for type on DDL


core/src/main/java/org/apache/calcite/avatica/util/AbstractCursor.java (2 lines):
	- line 711: //FIXME There are several issues with this, the code below simply implements
	- line 808: //FIXME: Protobuf gets byte[]


core/build.gradle.kts (2 lines):
	- line 54: // TODO: remove when protobuf-generated files are removed
	- line 76: // TODO: remove when protobuf-generated files are removed


core/src/main/java/org/apache/calcite/avatica/AvaticaDatabaseMetaData.java (2 lines):
	- line 267: return false; // TODO: more detail
	- line 688: // TODO: add a 'catch ... throw new SQLException' logic to this and other


server/build.gradle.kts (1 line):
	- line 50: // TODO: remove when org.apache.calcite.avatica.SpnegoTestUtil.TARGET_DIR is updated


core/src/main/java/org/apache/calcite/avatica/util/DateTimeUtils.java (1 line):
	- line 41: * <p>TODO: review methods for performance. Due to allocations required, it may


server/src/main/java/org/apache/calcite/avatica/jdbc/JdbcMeta.java (1 line):
	- line 762: // TODO: review client to ensure statementId is updated when appropriate


core/src/main/java/org/apache/calcite/avatica/remote/AbstractHandler.java (1 line):
	- line 138: // TODO provide a canned ErrorResponse


core/src/main/java/org/apache/calcite/avatica/remote/LocalService.java (1 line):
	- line 93: // TODO Revise modification of CursorFactory see:


core/src/main/java/org/apache/calcite/avatica/remote/AvaticaHttpClientImpl.java (1 line):
	- line 39: // TODO back-off policy?


core/src/main/java/org/apache/calcite/avatica/ConnectionPropertiesImpl.java (1 line):
	- line 52: // TODO: replace with Meta.ConnectionProperties$EMPTY instance?


metrics-dropwizardmetrics/build.gradle.kts (1 line):
	- line 25: // TODO: declare in :bom?


core/src/main/java/org/apache/calcite/avatica/AvaticaResultSet.java (1 line):
	- line 214: // TODO: for timeout, see IteratorResultSet.next


build.gradle.kts (1 line):
	- line 378: // TODO: remove when LICENSE is removed (it is used by Maven build for now)