| 1 | .\"------------------------------------------------------------
|
|---|
| 2 | .\" Id - set Rv,revision, and Dt, Date using rcs-Id tag.
|
|---|
| 3 | .de Id
|
|---|
| 4 | .ds Rv \\$3
|
|---|
| 5 | .ds Dt \\$4
|
|---|
| 6 | ..
|
|---|
| 7 | .Id $Id: mg_invf_merge.1 16583 2008-07-29 10:20:36Z davidb $
|
|---|
| 8 | .\"------------------------------------------------------------
|
|---|
| 9 | .TH mg_invf_merge 1 \*(Dt CITRI
|
|---|
| 10 | .SH NAME
|
|---|
| 11 | mg_invf_merge \- Merge two inverted files and stemmed dictionaries
|
|---|
| 12 | .SH SYNOPSIS
|
|---|
| 13 | .B mg_invf_merge
|
|---|
| 14 | [
|
|---|
| 15 | .B \-h
|
|---|
| 16 | ]
|
|---|
| 17 | [
|
|---|
| 18 | .B \-s
|
|---|
| 19 | ]
|
|---|
| 20 | [
|
|---|
| 21 | .B \-w
|
|---|
| 22 | ]
|
|---|
| 23 | [
|
|---|
| 24 | .BI \-d " directory"
|
|---|
| 25 | ]
|
|---|
| 26 | .BI \-f " name"
|
|---|
| 27 | .SH DESCRIPTION
|
|---|
| 28 | This program takes two
|
|---|
| 29 | .BR mg (1)
|
|---|
| 30 | database compressed text files and appends the second to
|
|---|
| 31 | the first.
|
|---|
| 32 | It is part of the
|
|---|
| 33 | .BR mgmerge (1)
|
|---|
| 34 | addition to the
|
|---|
| 35 | .BR mg (1)
|
|---|
| 36 | package.
|
|---|
| 37 | .SH OPTIONS
|
|---|
| 38 | Options may appear in any order.
|
|---|
| 39 | .TP "\w'\fB\-d\fP \fIdirectory\fP'u+2n"
|
|---|
| 40 | .B \-h
|
|---|
| 41 | This displays a usage line on
|
|---|
| 42 | .IR stderr .
|
|---|
| 43 | .TP
|
|---|
| 44 | .B \-s
|
|---|
| 45 | This option will cause a slow merge to be performed on the inverted files,
|
|---|
| 46 | where each inverted file entry is decoded and recoded.
|
|---|
| 47 | The default is a fast merge. Accumulated fast merges slowly degrade
|
|---|
| 48 | compression performance on the resulting inverted file so
|
|---|
| 49 | a periodic slow merge is recommended.
|
|---|
| 50 | .TP
|
|---|
| 51 | .B \-w
|
|---|
| 52 | By default the database .weights file is updated with
|
|---|
| 53 | new weights for the new documents in
|
|---|
| 54 | .B mg_text_merge.
|
|---|
| 55 | The
|
|---|
| 56 | .B -w
|
|---|
| 57 | option turns this step off.
|
|---|
| 58 | .TP
|
|---|
| 59 | .BI \-d " directory"
|
|---|
| 60 | This specifies the directory where the document collection can be found.
|
|---|
| 61 | .TP
|
|---|
| 62 | .BI \-f " name"
|
|---|
| 63 | This specifies the base name of the document collection.
|
|---|
| 64 | .SH ENVIRONMENT
|
|---|
| 65 | .TP "\w'\fBMGDATA\fP'u+2n"
|
|---|
| 66 | .SB MGDATA
|
|---|
| 67 | If this environment variable exists, then its value is used as the
|
|---|
| 68 | default directory where the
|
|---|
| 69 | .BR mg (1)
|
|---|
| 70 | collection files are. If this variable does not exist, then the
|
|---|
| 71 | directory \*(lq\fB.\fP\*(rq is used by default. The command line
|
|---|
| 72 | option
|
|---|
| 73 | .BI \-d " directory"
|
|---|
| 74 | overrides the directory in
|
|---|
| 75 | .BR MGDATA .
|
|---|
| 76 | .SH FILES
|
|---|
| 77 | .TP 20
|
|---|
| 78 | .B *.old.invf.dict
|
|---|
| 79 | The old compressed stemmed dictionary.
|
|---|
| 80 | .TP
|
|---|
| 81 | .B *.new.invf.dict
|
|---|
| 82 | The new compressed stemmed dictionary.
|
|---|
| 83 | .TP
|
|---|
| 84 | .B *.invf.dict
|
|---|
| 85 | The resulting merged compressed stemmed dictionary.
|
|---|
| 86 | .TP
|
|---|
| 87 | .B *.old.invf.ORG
|
|---|
| 88 | The original inverted file saved by
|
|---|
| 89 | .BR mg_invf_rebuild .
|
|---|
| 90 | .TP
|
|---|
| 91 | .B *.old.invf
|
|---|
| 92 | The old inverted file.
|
|---|
| 93 | .TP
|
|---|
| 94 | .B *.new.invf
|
|---|
| 95 | The new inverted file.
|
|---|
| 96 | .TP
|
|---|
| 97 | .B *.invf
|
|---|
| 98 | The resulting merged inverted file.
|
|---|
| 99 | .TP
|
|---|
| 100 | .B *.weight
|
|---|
| 101 | The exact weights file.
|
|---|
| 102 | .TP
|
|---|
| 103 | .SH "SEE ALSO"
|
|---|
| 104 | .na
|
|---|
| 105 | .BR mg (1),
|
|---|
| 106 | .BR mgmerge (1),
|
|---|
| 107 | .BR mg_get_merge (1),
|
|---|
| 108 | .BR mg_text_merge (1),
|
|---|
| 109 | .BR mg_invf_rebuild (1),
|
|---|
| 110 | .BR mg_invf_dict (1),
|
|---|
| 111 | .BR mg_weights_build (1),
|
|---|
| 112 | .BR mgquery (1).
|
|---|
