!--------------------------------------------------------------------- ! ! BASIC PROPERTIES ! !--------------------------------------------------------------------- ! ! Path where index tables are held. Can be absolute or relative ! to the properties file. Defaults to tablePath. ! !indexPath=./indexes ! ! Path where system tables are held. Can be absolute or relative to ! the properties file. Defaults to tablePath. ! !systemPath=./system ! ! Path where database tables are held. Can be absolute or relative ! to the properties file. Defaults to "current" directory. ! tablePath=./tables ! ! Path where results set tables are held. Can be absolute or relative ! to the properties file. Defaults to tablePath. ! !tmpPath=./tmp ! ! Non-zero means paths are relative to the properties file. ! Default is absolute paths for files. ! relativeToProperties=1 ! ! Alternative partitions can be defined so that tables can be placed ! in multiple locations. Each partition is numbered: 1, 2, 3,... Tables ! can be created on partitions using the syntax ! ! CREATE TABLE ON PARTITION ... ! ! The partition count has to be supplied. ! !partitionCount=2 ! ! The locations of each partition must be supplied. These are always ! absolute path names. ! !partition1=d:/petes !partition2=c:/temp !--------------------------------------------------------------------- ! ! TUNING PROPERTIES ! !--------------------------------------------------------------------- ! ! The amount of each column to cache, expressed either as an absolute ! number of rows or as a percentage figure. Defaults to 256 or 10 respectively. ! ! This value applies only when tables are first created. It has no effect ! when a table is being re-opened. ! cacheAmount=512 ! ! CACHE_ROWS Must be one of CACHE_ROWS or CACHE_PERCENT. Determines whether ! to cache columns in tables based on an absolute number of rows, or the ! percentage number of rows in the table. ! ! This value applies only when tables are first created. It has no effect ! when a table is being re-opened. ! cacheCondition=CACHE_ROWS ! ! The amount of the system tables to be cached. Defaults to 100. ! ! This value applies only when tables are first created. It has no effect ! when a table is being re-opened. ! !systemCacheSize=10 ! ! Similar to cacheCondition, but applies only to the system tables. ! ! This value applies only when tables are first created. It has no effect ! when a table is being re-opened. ! !systemCacheCondition=CACHE_ROWS ! ! The percentage cache hit improvement required in order to move the ! cache to a new location in a column. ! ! (Currently not implemented). ! cacheResetPercent=10 ! ! Non-zero means that database changes do not get written to the ! database immediately. See tuning.html. ! fastUpdate=0 ! ! Percentage of free space in an index that must be present before ! the index reorganises itself. High values means frequent index ! reorganisation. Low values means slow index inserts. ! indexLoad=5 ! ! The number of cache misses to include in calculations of the next ! base for the cache. ! ! (Currently not implemented). ! missesInCacheStats=100 ! ! Non-zero means that results sets get instantiated on disk. By default ! InstantDB holds results sets emtirely in memory (apart from Binary ! columns). For large results sets this can be a problem. This property ! forces all results sets to be held on disk. ! resultsOnDisk=0 ! ! Similar to cacheCondition but applies only to disk based ! results sets. Default is CACHE_ROWS. ! resultsSetCache=CACHE_ROWS ! ! Similar to cacheAmount but applies only to disk based ! results sets. Default is 100. ! resultsSetCacheAmount=100 ! ! Number of rows to read into the disk read ahead buffer. ! Recommended to be set somewhere around 128 to 256. ! Default is 20. ! rowCacheSize=128 ! ! The read ahead buffer is effective at speeding up full ! table scans. However for indexed lookups or multiple ! simultaneous scans it is better to read a single row at ! a time. Each table holds a small number of single row ! buffers to improve such operations. Default is 8. ! !singleRowCount=4 ! ! Sometimes the look ahead buffer can be held by a single ! thread even though it is not retrieveing many values from it. ! If too many lookups retrieve data from the single row ! buffers then it is better to flush the look ahead buffer and ! make it available for re-use. Default is 128. ! !flushAfterCacheMisses=64 ! ! Number of rows to read ahead for system tables. By default ! system tables cache everything, so it is wasteful to have large ! read ahead buffers since they will very rarely be used. This ! allows the size of the system read ahead buffers to be reduced ! if necessary. Defaults to rowCacheSize. ! !systemRows=20 ! ! The control column in all tables normally has a large cache ! since this speeds up all operation on that table. This can be ! varied to either improve performance or to reduce space. ! default is 8192. ! ! This value applies only when tables are first created. It has no effect ! when a table is being re-opened. ! !controlColCacheSize=512 ! ! By default, InstantDB only does a cursory search for deleted rows during ! UPDATE statements. Setting searchDeletes=1 causes more detailed searches ! for deleted rows. This slows down UPDATE executions, but reults in more ! compact tables. Default is 0. ! searchDeletes=0 ! ! The interval, in milliseconds, between checks for statement execution ! timeouts. Default is 5000. ! !timerCheck=5000 !--------------------------------------------------------------------- ! ! LOGGING AND DEBUGGING PROPERTIES ! !--------------------------------------------------------------------- ! ! Non-zero means include SQL statements in the export file. ! exportSQL=0 ! ! Non-zero means trace output also directed to console. ! Defaults to 0. ! traceConsole=1 ! ! Relative or absolute path where exporting and tracing goes. ! traceFile=./trace.log ! ! Bitmap of various items that can be traced. See debug.html. ! Defaults to 0. ! traceLevel=2 !--------------------------------------------------------------------- ! ! TRANSACTION AND RECOVERY PROPERTIES ! !--------------------------------------------------------------------- ! ! 0 means do not perform recovery on startup. ! 1 means perform automatic recovery ! 2 (default) means prompt the user using standard in ! recoveryPolicy=2 ! ! Sets the level of transaction journalling. See trans.html. ! Defaults to 1. ! ! 0 - No journalling takes place. ! 1 - Normal journalling (default). ! 2 - Full journalling. ! transLevel=1 ! ! When doing an import, defines the number of rows imported ! before the transaction is committed. Recommended value 8192. ! defaults to 100. ! transImports=100 !--------------------------------------------------------------------- ! ! DATE, TIME AND CURRENCY PROPERTIES ! !--------------------------------------------------------------------- ! ! Number of digits after decimal point in currency outputs. Defaults to 2. ! currencyDecimal=2 ! ! Currency symbol used in currency outputs. Defaults to $. ! currencySymbol=$ ! ! Default format for date columns. Defaults to "yyyy-mm-dd". ! dateFormat=yyyy-mm-dd ! ! Default format for timestamp columns. Defaults to "yyyy-mm-dd hh:mm:ss.lll". ! dateTimeFormat=yyyy-mm-dd hh:mm:ss.lll ! ! If set, then all two digit dates less than its value are interpreted ! as 21st century dates. ! !milleniumBoundary=50 ! ! Set to 1 causes the date string "now" to store a full timestamp. ! Default is to store only the date for fields with now hour in the ! format string. ! nowMeansTime=0 !--------------------------------------------------------------------- ! ! STRING HANDLING PROPERTIES ! !--------------------------------------------------------------------- ! ! If set to 1 then String hashes use the JDK Object.hashCode() function. ! By default, uses InstantDB's String hashing. ! altStringHashing=0 ! ! Set to 1 to cause LIKE clauses to always perform case insensitive ! comparisons. ! likeIgnoreCase=0 ! ! Same as SET LITERAL STRICT_ON. Prevents string literals being interpreted ! as column names or numbers. Default is 0. ! strictLiterals=0 ! ! Set this value to 1 (one) if you would like PreparedStatement.setString() ! to ignore "\" (backslash) characters when proceesing string constants. ! When set, InstantDB will not attempt to interpret \ as the start of an ! escape sequence. Default is 0. ! !prepareIgnoresEscapes=1 !--------------------------------------------------------------------- ! ! MISCELLANEOUS PROPERTIES ! !--------------------------------------------------------------------- ! ! Allows selected InstantDB keywords to be un-reserved. ! e.g. ignoreKeywords=url,quote would allow the keywords ! url and quote to be used as table or column names. ! ! This faciliy is provided for compatatbility reasons only. ! It's use is not recommended AND IS NOT SUPPORTED. ! !ignoreKeywords ! ! Non-zero means database is opened in read only mode. ! readOnly=0