On Mon, Jun 8, 2015 at 10:27 PM, anil gupta <anilgupt...@gmail.com> wrote:
> So, if we have to match against non-string data in hbase shell. We should > always use double quotes? Double-quotes means the shell (ruby) will interpret and undo any escaping -- e..g. showing as hex -- of binary characters. What we emit on the shell is a combo of ruby escaping and our running all through https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/util/Bytes.html#toStringBinary(byte[]) first. If you type 'help' in the shell on the end we try to say this but could do a better job: "If you are using binary keys or values and need to enter them in the shell, use double-quote'd hexadecimal representation. For example: hbase> get 't1', "key\x03\x3f\xcd" hbase> get 't1', "key\003\023\011" hbase> put 't1', "test\xef\xff", 'f1:', "\x01\x33\x40"" St.Ack > Even for matching values of cells? > > On Mon, Jun 8, 2015 at 9:23 PM, Ted Yu <yuzhih...@gmail.com> wrote: > > > Double quotes allow you to do string interpolation. > > Aother difference (one pertinent to Anil's question) is that 'escape > > sequence' does not work using single quote. > > > > Cheers > > > > On Mon, Jun 8, 2015 at 9:11 PM, anil gupta <anilgupt...@gmail.com> > wrote: > > > > > Hi Jean, > > > > > > My bad. I gave a wrong illustration. This is the query is was trying on > > my > > > composite key: > > > hbase(main):017:0> scan 'CAR_ARCHIVE' , {COLUMNS=>'A', STARTROW => > > > '110\x00' , LIMIT=>1} > > > ROW > > > COLUMN+CELL > > > > > > 12\x0010123\x0019XFB2F56CE026679\x00\x80\x00\x00\x0 > column=A:BODYSTYLE, > > > timestamp=1432899595317, > > > value=SEDAN > > > > > > 0 > > > > > > 12\x0010123\x0019XFB2F56CE026679\x00\x80\x00\x00\x0 > > > column=A:BODYSTYLESLUG, timestamp=1432899595317, value=sedan. > > > > > > I do have this rowkey: > 110\x0033078\x001C4AJWAG0CL260823\x00\x80\x00\x00 > > > So, i was expecting to get that row. > > > > > > > > > Solution: scan 'CAR_ARCHIVE' , {COLUMNS=>'A', STARTROW => "110\x00" , > > > LIMIT=>1} > > > > > > I dont really know what's the difference between single quotes and > double > > > quotes in startrow. Can anyone explain? Also, It would help others, if > it > > > can be documented somewhere. > > > > > > Thanks, > > > Anil > > > > > > > > > On Mon, Jun 8, 2015 at 4:07 PM, Jean-Marc Spaggiari < > > > jean-m...@spaggiari.org > > > > wrote: > > > > > > > Hi Anil, > > > > > > > > Can you please clarify what seems to be wrong for you? > > > > > > > > You asked for start row "33078". Which mean Rows starting with a "3", > > > > followed by a "3", a "0", etc. and the first row returned start with > a > > > "4" > > > > which is correct given the startrow you have specified. > > > > > > > > You seems to have a composite key. And you seems to scan without > > building > > > > the composite key. How have you created your table and what is your > key > > > > design? > > > > > > > > JM > > > > > > > > 2015-06-08 16:56 GMT-04:00 anil gupta <anilgupt...@gmail.com>: > > > > > > > > > Hi All, > > > > > > > > > > I m having a lot of trouble dealing with HBase shell. I am running > > > > > following query: > > > > > > > > > > scan 'CAR_ARCHIVE' , {COLUMNS=>'A', STARTROW => '33078' , LIMIT=>1} > > > > > > > > > > ROW > > > > > COLUMN+CELL > > > > > > > > > > 4\x0010135\x001C4BJWEG2CL117550\x00\x7F\xFF\xFF\xFF > > > > > column=A:BODYSTYLE, timestamp=1430280906358, value=SPORT > > > > > UTILITY > > > > > > > > > > 4\x0010135\x001C4BJWEG2CL117550\x00\x7F\xFF\xFF\xFF > > > > > column=A:BODYSTYLESLUG, timestamp=1430280906358, > > > > > value=sport-utility > > > > > > > > > > 4\x0010135\x001C4BJWEG2CL117550\x00\x7F\xFF\xFF\xFF > > > > > column=A:CARFAXREPORTAVAILABLE, timestamp=1430280906358, > > > > > value=\x01 > > > > > > > > > > 4\x0010135\x001C4BJWEG2CL117550\x00\x7F\xFF\xFF\xFF > > > > > column=A:CARTYPE, timestamp=1430280906358, value={"isLuxury": > false, > > > > > "isTruck": false, "isSedan": false, "isCoupe": false, "isSuv": > true, > > > > > "isConvertible": false, "isVan": false, "isWagon": false, > > > > > "isEasyCareQualified": true} > > > > > > > > > > I specified, startRow='33078'. Then how come this result shows up? > > > What's > > > > > going over here? > > > > > > > > > > -- > > > > > Thanks & Regards, > > > > > Anil Gupta > > > > > > > > > > > > > > > > > > > > > -- > > > Thanks & Regards, > > > Anil Gupta > > > > > > > > > -- > Thanks & Regards, > Anil Gupta >
