When I used the demo sqlite file, there are some outputs

>sqlfile_demo <- getSQLiteFile(destdir = "~/bin/Rpack", destfile = "GEOmetadb.sqlite_demo.gz",type="demo")
>con <- dbConnect(SQLite(),sqlfile_demo)
>getBiocPlatformMap(con)[1:5,]

                                                                       title      gpl                 bioc_package         manufacturer
1                                      [Maize] Affymetrix Maize Genome Array  GPL4032                                        Affymetrix
2 Agilent-026652 Whole Human Genome Microarray 4x44K v2 (Probe Name version) GPL13497        HsAgilentDesign026652 Agilent Technologies
3     Illumina HumanMethylation27 BeadChip (HumanMethylation27_270596_v.1.2)  GPL8490  IlluminaHumanMethylation27k       Illumina, Inc.
4       Illumina HumanMethylation450 BeadChip (HumanMethylation450_15017482) GPL13534 IlluminaHumanMethylation450k       Illumina, Inc.
5                                   [AG] Affymetrix Arabidopsis Genome Array    GPL71                           ag           Affymetrix
              organism data_row_count
1             Zea mays          17734
2         Homo sapiens          34184
3         Homo sapiens          27578
4         Homo sapiens         485577
5 Arabidopsis thaliana           8297

> object.size(con)
2112 bytes

But when I used the complete sqlite file, there is no data.

>sqlfile <- getSQLiteFile(destdir = "~/bin/Rpack", destfile = "GEOmetadb.sqlite.gz",type="normal")
>con<-dbConnect(SQLite(),sqlfile)
>getBiocPlatformMap(con)[1:5,]
     title  gpl bioc_package manufacturer organism data_row_count
NA    <NA> <NA>         <NA>         <NA>     <NA>             NA
NA.1  <NA> <NA>         <NA>         <NA>     <NA>             NA
NA.2  <NA> <NA>         <NA>         <NA>     <NA>             NA
NA.3  <NA> <NA>         <NA>         <NA>     <NA>             NA
NA.4  <NA> <NA>         <NA>         <NA>     <NA>             NA

> object.size(con)
2096 bytes

The current GEOmetadb.sqlite file apparently has no entries for the bioc_package field. The table isn't empty however.

## 
> z <- dbGetQuery(con, "select title, gpl, manufacturer, organism, data_row_count from gpl where manufacturer is not null order by title;")
> head(z)
                                                                                           title      gpl
1 "Dehalococcoides ethenogenes" strain 195 with Methanogens and Fosmids, Base Composition Method GPL11218
2                        "Dehalococcoides ethenogenes" strain 195 with Mixed Community Sequences GPL10023
3   "Dehalococcoides ethenogenes" strain 195 with Mixed Community Sequences [Probe Name version] GPL16121
4                                                       (OID28929)100603_Sus_scrofa_CB_expr_HX12 GPL18875
5                                        017617 IMUL-Candida glabrata 8x15k [Probe name version] GPL22200
6                                                         018538_Agilent Agaricus bisporus array GPL20649
          manufacturer                       organism data_row_count
1              Agilent   Dehalococcoides mccartyi 195          15744
2              Agilent   Dehalococcoides mccartyi 195          15744
3              Agilent   Dehalococcoides mccartyi 195           1687
4            NimbleGen                     Sus scrofa          45022
5 Agilent Technologies Nakaseomyces glabratus CBS 138          10488
6              Agilent              Agaricus bisporus          11521

## just Affymetrix
> z <- dbGetQuery(con, "select title, gpl, manufacturer, organism, data_row_count from gpl where manufacturer='Affymetrix' order by title;")
> head(z)
                         title     gpl manufacturer     organism data_row_count
1 AFFY Human Phase3 v1.0 - C01 GPL5234   Affymetrix Homo sapiens        3161260
2 AFFY Human Phase3 v1.0 - C02 GPL5235   Affymetrix Homo sapiens        4053015
3 AFFY Human Phase3 v1.0 - C03 GPL5236   Affymetrix Homo sapiens        3223204
4 AFFY Human Phase3 v1.0 - C04 GPL5237   Affymetrix Homo sapiens        2951193
5 AFFY Human Phase3 v1.0 - C05 GPL5238   Affymetrix Homo sapiens        3469626
6 AFFY Human Phase3 v1.0 - C06 GPL5239   Affymetrix Homo sapiens        3052792

## try to get hgu133plus2 data
> z <- dbGetQuery(con, "select title, gpl, manufacturer, organism, data_row_count from gpl where manufacturer='Affymetrix' and title like '%U133_Plus%' order by title;")
> head(z)
                                                                                                          title
1    Affymetrix GeneChip Human Genome HG-U133 Plus 2 Array [CDF: Brainarray Version 11, HGU133Plus2_Hs_ENTREZG]
2                               Affymetrix GeneChip Human Genome HG-U133 Plus 2 Array [Hs133P_Hs_ENTREZG_8.cdf]
3 Affymetrix GeneChip Human Genome U133 Array Set HG-U133 Plus2 based on a custom CDF (GeneAnnot version 2.1.0)
4 Affymetrix GeneChip Human Genome U133 Array Set HG-U133 Plus2 based on a custom CDF (GeneAnnot version 2.2.0)
5                    Affymetrix GeneChip Human Genome U133 Plus 2.0 Array (Brainarray CustomCDF [Hs133P_Hs_UG])
6 Affymetrix GeneChip Human Genome U133 Plus 2.0 Array (Brainarray CustomCDF, HGU133Plus2_Hs_UG_Version 11.cdf)
       gpl manufacturer     organism data_row_count
1  GPL8712   Affymetrix Homo sapiens          17788
2 GPL13303   Affymetrix Homo sapiens          17663
3 GPL19633   Affymetrix Homo sapiens          18862
4 GPL19171   Affymetrix Homo sapiens          19204
5 GPL10925   Affymetrix Homo sapiens          22244
6  GPL9099   Affymetrix Homo sapiens          22244