Provided by: stilts_3.1.2-2_all 
NAME
stilts-tjoin - Joins multiple tables side-to-side
SYNOPSIS
stilts tjoin [nin=<count>] [ifmtN=<in-format>] [inN=<tableN>] [icmdN=<cmds>] [ocmd=<cmds>]
[omode=out|meta|stats|count|cgi|discard|topcat|samp|tosql|gui] [out=<out-table>] [ofmt=<out-
format>] [fixcols=none|dups|all] [suffixN=<label>]
DESCRIPTION
tjoin performs a trivial side-by-side join of multiple tables. The N'th row of the output table consists
of the N'th row of the first input table, followed by the N'th row of the second input table, ... and so
on. It is suitable if you want to amalgamate two or more tables whose row orderings correspond exactly to
each other.
For the (more usual) case in which the rows of the tables to be joined are not already in the right
order, use one of the crossmatching commands.
OPTIONS
nin=<count>
The number of input tables for this task. For each of the input tables N there will be associated
parameters ifmtN, inN and icmdN.
ifmtN=<in-format>
Specifies the format of input table #N as specified by parameter inN. The known formats are listed
in SUN/256. This flag can be used if you know what format your table is in. If it has the special
value (auto) (the default), then an attempt will be made to detect the format of the table
automatically. This cannot always be done correctly however, in which case the program will exit
with an error explaining which formats were attempted.
inN=<tableN>
The location of input table #N. This may take one of the following forms:
* A filename.
* A URL.
* The special value "-", meaning standard input. In this case the input format must be given
explicitly using the ifmtN parameter. Note that not all formats can be streamed in this way.
* A system command line with either a "<" character at the start, or a "|" character at the end
("<syscmd" or "syscmd|"). This executes the given pipeline and reads from its standard output.
This will probably only work on unix-like systems.
In any case, compressed data in one of the supported compression formats (gzip, Unix compress or
bzip2) will be decompressed transparently.
icmdN=<cmds>
Specifies processing to be performed on input table #N as specified by parameter inN, before any
other processing has taken place. The value of this parameter is one or more of the filter
commands described in SUN/256. If more than one is given, they must be separated by semicolon
characters (";"). This parameter can be repeated multiple times on the same command line to build
up a list of processing steps. The sequence of commands given in this way defines the processing
pipeline which is performed on the table.
Commands may alteratively be supplied in an external file, by using the indirection character '@'.
Thus a value of "@filename" causes the file filename to be read for a list of filter commands to
execute. The commands in the file may be separated by newline characters and/or semicolons.
ocmd=<cmds>
Specifies processing to be performed on the output table, after all other processing has taken
place. The value of this parameter is one or more of the filter commands described in SUN/256. If
more than one is given, they must be separated by semicolon characters (";"). This parameter can
be repeated multiple times on the same command line to build up a list of processing steps. The
sequence of commands given in this way defines the processing pipeline which is performed on the
table.
Commands may alteratively be supplied in an external file, by using the indirection character '@'.
Thus a value of "@filename" causes the file filename to be read for a list of filter commands to
execute. The commands in the file may be separated by newline characters and/or semicolons.
omode=out|meta|stats|count|cgi|discard|topcat|samp|tosql|gui
The mode in which the result table will be output. The default mode is out, which means that the
result will be written as a new table to disk or elsewhere, as determined by the out and ofmt
parameters. However, there are other possibilities, which correspond to uses to which a table can
be put other than outputting it, such as displaying metadata, calculating statistics, or
populating a table in an SQL database. For some values of this parameter, additional parameters
(<mode-args>) are required to determine the exact behaviour.
Possible values are
* out
* meta
* stats
* count
* cgi
* discard
* topcat
* samp
* tosql
* gui
Use the help=omode flag or see SUN/256 for more information.
out=<out-table>
The location of the output table. This is usually a filename to write to. If it is equal to the
special value "-" (the default) the output table will be written to standard output.
This parameter must only be given if omode has its default value of "out".
ofmt=<out-format>
Specifies the format in which the output table will be written (one of the ones in SUN/256 -
matching is case-insensitive and you can use just the first few letters). If it has the special
value "(auto)" (the default), then the output filename will be examined to try to guess what sort
of file is required usually by looking at the extension. If it's not obvious from the filename
what output format is intended, an error will result.
This parameter must only be given if omode has its default value of "out".
fixcols=none|dups|all
Determines how input columns are renamed before use in the output table. The choices are:
* none: columns are not renamed
* dups: columns which would otherwise have duplicate names in the output will be renamed to
indicate which table they came from
* all: all columns will be renamed to indicate which table they came from
If columns are renamed, the new ones are determined by suffix* parameters.
suffixN=<label>
If the fixcols parameter is set so that input columns are renamed for insertion into the output
table, this parameter determines how the renaming is done. It gives a suffix which is appended to
all renamed columns from table N.
SEE ALSO
stilts(1) If the package stilts-doc is installed, the full documentation SUN/256 is available in HTML format: file:///usr/share/doc/stilts-doc/sun256/index.html
VERSION
STILTS version 3.1-2-debian
This is the Debian version of Stilts, which lack the support of some file formats and network protocols.
For differences see
file:///usr/share/doc/stilts/README.Debian
AUTHOR
Mark Taylor (Bristol University)
Mar 2017 STILTS-TJOIN(1)